NSN catalog · 90,963 partsCatalog › Hardware and Abrasives › FSC 5310 › 5310-01-066-6759
Self-Locking Hexagon Nut P/N 21NE-040
In stock — 84 on our U.S. shelfNSN 5310-01-066-6759 5310010666759 NIIN 010666759
SECO Parts has 84 in stock of NSN 5310-01-066-6759 — Self-Locking Hexagon Nut — on our own shelf in Augusta, GA: a stocking supplier, not a broker. Low-cost part: quoted by the line, $50 minimum per line; quantity pricing on request.
One part, one step — answered within one business day. Several parts? and send them together.
- Ships in 1–3 business days from Augusta, GA
- Certificate of Conformance on request
- PO, GPC & major cards
- $50 minimum order — smaller requests still get a quote
- 30-day returns · terms
- FLIS item name
- NUT,SELF-LOCKING,HEXAGON
- SECO description
- NUT
- Federal supply class
- FSC 5310 — Nuts and Washers
- Used on
- Cargo Truck (2320-01-097-0260) HEMTT (Heavy Expanded Mobility Tactical Truck); NSN Truck Tractor (2320-01-318-9902) HET (Heavy Equipment Transporter); NSN Fire Fighting Truck (4210-01-486-1035) Tfft (Tactical Fire Fighting Truck); MRAP - M-ATV
- Platform
- MRAP parts · HEMTT parts
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 60 |
| New | NE | 24 |
| Total | 84 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5310-01-066-6759 010666759 21NE-040 10275122 66419AX SN-4 219-9011 34272 131-71 5593035 66419-A 9440324
In the parts manual
| Manual | Figure | Item | Fits |
|---|---|---|---|
| TM 9-2320-280-24P | Fig. 19 — Fuel Filter Assembly/Water Separator and Mounting Hardware | 18 | HMMWV: All models |
| TM 9-2320-280-24P | Fig. 233 — Protective Padding On “B” Pillar Cover For Armored Vehicles | 4 | HMMWV: M966, M966A1, M1045, M1045A1, M1045A2, M1046 and 2 more |
| TM 9-2320-280-24P | Fig. 233 — Protective Padding On “B” Pillar Cover For Armored Vehicles | 4 | HMMWV: M1025, M1025A1, M1025A2, M1026, M1026A1 |
| TM 9-2320-280-24P | Fig. 266 — Tailgate Assembly and Related Parts | 16 | HMMWV: All A1 models except M996A1, M997A1; all A2 models except M997A2, plus M966, M998, M1025, M1026, M1035, M1038 and 7 more |
| TM 9-2320-280-24P | Fig. 389 — Seat Support Assemblies and Mounting Hardware | 12 | HMMWV: M998, M998A1, M1038, M1038A1 |
From the Army repair parts manual's parts list and its usable-on codes. The figure page shows the exploded drawing and every other part in the assembly.
Get a quote
Build a list across as many parts as you need, send it once, get one quote back — answered within one business day, usually the same day. POs and GPC welcome. $50 minimum order.
More to tell us? Need-by date, ship-to, your own RFQ document
Specifications
- Thread class
- 3B
- Thread direction
- Right-Hand
- Locking feature
- Prevailing Torque with Nonmetallic Insert
- Nut height
- 0.298–0.328 in
- Width across flats
- 0.430–0.439 in
- Temp rating
- Fahrenheit Maximum 250.0
- Thread series
- Unjc
- Thread quantity per inch
- 20
- Nominal thread size
- Inches 0.250
- Bearing surface type
- Chamfered
- Material
- Locking Insert Plastic Polyamide Nylon
- Material
- Overall Except Insert Steel
- Surface treatment
- Overall Except Insert Zinc
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
21NE-040 10275122 66419AX SN-4 219-9011 34272 131-71 5593035 66419-A 9440324
Also referenced as
9419454 6630030 734678-0013
Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.
Shown for identification only. SECO can quote against any of these numbers.
Logistics data
| Source of supply | SMS DLA Land and Maritime, Columbus, Ohio |
| Acquisition advice code | D DLA/GSA stocked — stocked by DLA or GSA and issued from central stock |
| Unit of issue | EA each |
| Demilitarization code | A Demilitarization not required — non-munitions-list item |
| Controlled inventory code | U Unclassified |
| Hazardous material indicator | N No hazardous material |
Source: public FLIS/PUB LOG cataloging data.
Why buy from SECO
These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.
In business since 1951 · 30,000+ contracts completed · about SECO & our policies · more questions answered
FAQ
What is NSN 5310-01-066-6759?
NSN 5310-01-066-6759 (5310010666759) — Self-Locking Hexagon Nut: SECO Parts has 84 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for self-locking hexagon nut in federal supply class 5310 (Nuts and Washers).
Is NSN 5310-01-066-6759 available?
SECO Parts has 84 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5310-01-066-6759 cost?
NSN 5310-01-066-6759 is a low-cost part, so SECO quotes it by the line rather than by the piece: there is a $50 minimum per line, and quantity pricing on request — usually answered the same business day.
What does NSN 5310-01-066-6759 fit?
The federal catalog lists NSN 5310-01-066-6759 as used on: Cargo Truck (2320-01-097-0260) HEMTT (Heavy Expanded Mobility Tactical Truck); NSN Truck Tractor (2320-01-318-9902) HET (Heavy Equipment Transporter); NSN Fire Fighting Truck (4210-01-486-1035) Tfft (Tactical Fire Fighting Truck); MRAP - M-ATV. SECO lists it under MRAP parts, HEMTT parts.
What part numbers cross-reference to NSN 5310-01-066-6759?
Part numbers that cross-reference this NSN include 21NE-040, 10275122, 66419AX, SN-4, 219-9011, 34272, 131-71, 5593035. It is also referenced by older, superseded or advisory numbers: 9419454, 6630030, 734678-0013. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names NUT,SELF-LOCKING,HEXAGON. Same name is not the same part: check the part numbers.