NSN catalog · 90,963 partsCatalog › Hardware and Abrasives › FSC 5310 › 5310-00-449-2381
Self-Locking Hexagon Nut P/N RMLH7644-108
In stock — 747 on our U.S. shelfNSN 5310-00-449-2381 5310004492381 NIIN 004492381
SECO Parts has 747 in stock of NSN 5310-00-449-2381 — 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, SELF-LOCKING
- Federal supply class
- FSC 5310 — Nuts and Washers
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New | NE | 743 |
| New Surplus | NS | 4 |
| Total | 747 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
5310-00-449-2381 004492381 RMLH7644-108 MS21245L10 MS20364C1018
In the parts manual
| Manual | Figure | Item | Fits |
|---|---|---|---|
| TM 9-2320-280-24P | Fig. 35 — Generator, 60 AMP, 100 AMP, Belts, Pulley, and Mounting Hardware | 7 | HMMWV: All A0 models except M996, M997, M1097; all A1 models except M996A1, M997A1, M1097A1, plus M1121 |
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
- Width across flats
- 0.928–0.940 in
- Bearing surface finish
- Microinches 125.0
- Material
- Overall Steel
- Surface treatment
- Overall Cadmium
- Surface treatment document and classification
- Overall Fed Spec Single Treatment Response QQ--416,TY 1,CL 3
- Nominal thread size
- Inches 0.625
- Bearing surface type
- Chamfered or Washer Faced
- Locking feature
- Prevailing Torque All Metal Design
- Lubrication
- Dry Film Lubricant
- Thread series
- Unified National Joint Fine (Unjf)
- Thread quantity per inch
- 18
- Thread class
- 3B
- Thread direction
- Right-Hand
- Temp rating
- Fahrenheit Nominal 450.0
- Hardness rating
- Rockwell C Maximum 46.0
- Nut height
- 0.407 in maximum
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
RMLH7644-108 MS21245L10 MS20364C1018
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 5310-00-449-2381?
NSN 5310-00-449-2381 (5310004492381) — Self-Locking Hexagon Nut: SECO Parts has 747 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 5310-00-449-2381 available?
SECO Parts has 747 in stock in Augusta, GA — order or request a quote below.
How much does NSN 5310-00-449-2381 cost?
NSN 5310-00-449-2381 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 part numbers cross-reference to NSN 5310-00-449-2381?
Part numbers that cross-reference this NSN include RMLH7644-108, MS21245L10, MS20364C1018. 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.