NSN catalog · 90,963 partsCatalog › Pipe, Tubing, Hose, and Fittings › FSC 4730 › 4730-00-277-6371
Tube Fitting Locknut P/N AS5179D04
In stock — 144 on our U.S. shelfNSN 4730-00-277-6371 4730002776371 NIIN 002776371
SECO Parts has 144 in stock of NSN 4730-00-277-6371 — Tube Fitting Locknut — 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
- LOCKNUT,TUBE FITTING
- SECO description
- LOCKNUT, TUBE
- Federal supply class
- FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
- Used on
- Grumman A10 Aircraft; Boeing Vertol Cargo Transport Helicopter,Model C-47; F-18 Aircraft
Availability & condition
| Condition | Code | Qty on shelf |
|---|---|---|
| New Surplus | NS | 144 |
| Total | 144 |
Quantities are live from SECO's inventory system, not estimated.
Also known as:
4730-00-277-6371 002776371 AS5179D04 SAE-AS4841 AN6289-4D AN6289D4 477 676 752 522 MIL-F-5509 905857-0403 5857-0403 Q37-4
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 direction
- Right-Hand
- Nominal thread size
- Inches 0.438
- Nominal tube outside diameter
- Inches 0.250
- Material
- Overall Aluminum Alloy 2014
- Material document and classification
- Overall Fed Spec Single Material Response QQ-A-225 to 4,Alloy 2014,T6
- Thread class
- 3B
- Nut height
- 0.281 in (nominal)
- Packing recess diameter
- 0.608 in (nominal)
- Width across flats
- 0.688 in (nominal)
- Surface treatment
- Overall Anodize
- Packing recess depth
- 0.042 in (nominal)
- Surface treatment document and classification
- Overall MIL Spec Single Treatment Response -IL-A-8625,Tye 2,Class 2
- Specification/standard data
- Government Standard 88044-AN6289
- Thread quantity per inch
- 20
- Thread series
- UNF
From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.
Cross-reference part numbers
AS5179D04 SAE-AS4841 AN6289-4D AN6289D4 477 676 752 522 MIL-F-5509 905857-0403 5857-0403 Q37-4
Also referenced as
10086128
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 4730-00-277-6371?
NSN 4730-00-277-6371 (4730002776371) — Tube Fitting Locknut: SECO Parts has 144 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for tube fitting locknut in federal supply class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings).
Is NSN 4730-00-277-6371 available?
SECO Parts has 144 in stock in Augusta, GA — order or request a quote below.
How much does NSN 4730-00-277-6371 cost?
NSN 4730-00-277-6371 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 4730-00-277-6371 fit?
The federal catalog lists NSN 4730-00-277-6371 as used on: Grumman A10 Aircraft; Boeing Vertol Cargo Transport Helicopter,Model C-47; F-18 Aircraft.
What part numbers cross-reference to NSN 4730-00-277-6371?
Part numbers that cross-reference this NSN include AS5179D04, SAE-AS4841, AN6289-4D, AN6289D4, 477 676, 752 522, MIL-F-5509, 905857-0403. It is also referenced by older, superseded or advisory numbers: 10086128. SECO can quote against any of them.
Same item, other stock numbers
Other NSNs the federal catalog names LOCKNUT,TUBE FITTING. Same name is not the same part: check the part numbers.