Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,EXTENDED WASHER
NUT,SELF-LOCKING,EXTENDED WASHER
5310-01-172-5134 FSC 5310
NSN 5310-01-172-5134 (also written 5310011725134; NIIN 01-172-5134) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 9 manufacturer part numbers from 9 suppliers are on record. It was last purchased in Oct 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
P
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC P: the government does not own the rights to the data needed for more sources. The codes describe the item's status on record, not any one solicitation. What the codes mean
What it is — can you make it?
Dimensions, the FLIS specification requirements, and the manufacturer part numbers already qualified against this NSN.
Specifications
From the federal catalog (DLA FLIS / PUB LOG) — what your part has to meet. Cited specification documents can be looked up in ASSIST Quick Search ↗, DoD's public spec repository — copy the document number in.
| Requirement | Value |
|---|---|
| THREAD CLASS AAJD | 3B |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| LOCKING FEATURE AAUM | PREVAILING TORQUE ALL METAL DESIGN |
| WASHER OUTSIDE DIAMETER AAVX | INCHES MINIMUM 0.414 AND INCHES MAXIMUM 0.444 |
| LUBRICATION ABAJ | DRY FILM LUBRICANT |
| OVERALL HEIGHT ABKW | INCHES MAXIMUM 0.290 |
| NUT STYLE ACTA | — |
| WASHER THICKNESS ADEM | INCHES MINIMUM 0.040 |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.367 AND INCHES MAXIMUM 0.373 |
| TEMP RATING AZKQ | FAHRENHEIT MAXIMUM 450.0 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH CMLP | 28 |
| HARDNESS RATING CQFM | ROCKWELL C MINIMUM 34.0 AND ROCKWELL C MAXIMUM 43.0 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.250 |
| MATERIAL MATT | OVERALL STEEL COMP 8740 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 6322 |
| SURFACE TREATMENT SFTT | OVERALL CADMIUM AND CHROMATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TYE 2,CLASS 2 QQ--416 |
Manufacturer part numbers
Commercial part numbers cross-referenced to this NSN in the federal catalog — the parts that have been accepted as satisfying this stock number, and who makes them.
| Part number | CAGE | Manufacturer |
|---|---|---|
| 48FLW-428 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| 48FLW-428 | A0126 | LEONARDO SPA HELICOPTERS DIVISION - PRODUCTION SITE |
| 721009105300 | A1140 | LEONARDO SPA DIVISIONE SISTEMI DI DIFESA |
| BH00510-4 | 27238 | BRISTOL INDUSTRIES, LLC |
| H39921-4 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC |
| HS262-428 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC |
| HS262-428 | 8V613 | THE BOEING COMPANY |
| LH13450-4 | 72962 | HARVARD INDUSTRIES INC |
| SLN149-428 | 16258 | SPACE-LOK, INC. DBA SPACE-LOK INC DIV SPACE-LOK |
What it pays — so you can quote
The government's own price and demand record for this NSN — what past awards cleared at, so you know where to land your quote.
Latest unit price
—
Purchases
0
Total spend
—
Oct 23, 2026
Last purchased
1 · 1.0/yr
Purchase records
$11,525
Total demand
$11,525
Latest award total
Purchase history
No priced purchases on record for this NSN yet.
Related contract actions
Contract action totals, not unit prices — obligation amounts from USAspending for related awards, shown for context only. These do not appear on the price chart above.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Oct 23, 2026 | SPE4A626PK619 ↗ | — | — | $11,525 |
Demand history
Who wins this item
Does one supplier win this every time, and are the winners on the listed-source list? One dot per award.
- Award in the last 2 years
- Older award
CAGE 13W08
last award Oct 2026
BRISTOL INDUSTRIES, LLC
no award yet
no awards on record
Listed source HARVARD INDUSTRIES INC
no award yet
no awards on record
Listed source HOWMET GLOBAL FASTENING SYSTEMS INC
no award yet
no awards on record
Listed source LEONARDO SPA DIVISIONE SISTEMI DI DIFESA
no award yet
no awards on record
Listed source LEONARDO SPA HELICOPTERS DIVISION - PRODUCTION SITE
no award yet
no awards on record
Listed source MCDONNELL DOUGLAS HELICOPTER CO INC
no award yet
no awards on record
Listed source SPACE-LOK, INC. DBA SPACE-LOK INC DIV SPACE-LOK
no award yet
no awards on record
Listed source CAGE 13W08 won the only award on record. CAGE 13W08 won without being a listed source.
Open RFQs on DIBBS → DIBBS award history ↗
About this data
- Unit prices: DLA DIBBS award records — every row links to its government record.
- AMSC: latest observed value from DIBBS solicitation history as of Oct 24, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-24.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,EXTENDED WASHER." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-172-5134/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-172-5134/