Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,EXTENDED WASHER
NUT,SELF-LOCKING,EXTENDED WASHER
5310-01-306-9048 FSC 5310
NSN 5310-01-306-9048 (also written 5310013069048; NIIN 01-306-9048) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 17 manufacturer part numbers from 12 suppliers are on record. The government has 1 open solicitation for it.
Open for bid
1 open solicitation on record right now — quantity, close date, and where to submit.
| Solicitation | Qty | Status | |
|---|---|---|---|
| SPE4A6-27-T-4833 | 302 | Closes in 4d | Bid → |
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
C
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC C: needs engineering source approval; other sources must qualify first. 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 MAXIMUM 0.425 |
| COUNTERBORE DIAMETER AAWY | WASHER INCHES MINIMUM 0.284 AND INCHES MAXIMUM 0.288 |
| LUBRICATION ABAJ | DRY FILM LUBRICANT |
| OVERALL HEIGHT ABKW | INCHES MAXIMUM 0.340 |
| NUT STYLE ACTA | — |
| NUT COUNTERBORE DEPTH ADFK | WASHER INCHES MINIMUM 0.107 AND INCHES MAXIMUM 0.117 |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.305 AND INCHES MAXIMUM 0.313 |
| THREAD SERIES BZRR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH CMLP | 28 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.250 |
| SPECIAL FEATURES FEAT | YELLOW IDENTIFICATION ON OUTSIDE OF NUT |
| MATERIAL MATT | OVERALL IRON ALLOY 660 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5643 |
| SURFACE TREATMENT SFTT | OVERALL PASSIVATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--35 QQ--35 |
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 |
|---|---|---|
| 03A136-4L | 1W025 | NORTHROP GRUMMAN SYSTEMS CORP DBA NORTHROP GRUMMAN COMPUTING SYSTEMS |
| 03A136-4L | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS |
| BH00620M4 | 27238 | BRISTOL INDUSTRIES, LLC |
| BH136M-4L | 27238 | BRISTOL INDUSTRIES, LLC |
| KFN511DL-4 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC DIV TORRANCE OPERATIONS |
| KFN511DL4 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC |
| KFN511DL4 | 17466 | GE KAYE INSTRUMENTS INC |
| KFN511DL4 | 27970 | PANAMETRICS LLC |
| KFN511DL4 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| KFN511DL4 | 97928 | HUCK INTL INC |
| KFN517DL4 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC |
| KFN668-4 | 08524 | DEUTSCH FASTENER CORP |
| KFN668-4 | 15653 | HOWMET GLOBAL FASTENING SYSTEMS INC |
| KFN668-4 | 17446 | HUCK INTERNATIONAL, INC |
| KFN668-4 | 56878 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| KFN668-4 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC DIV TORRANCE OPERATIONS |
| LE114-0031-0004 | 43999 | THE BOEING COMPANY DIV LEGACY AM&M |
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
—
—
Last purchased
—
Purchase records
—
Total demand
—
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.
No related contract actions on record.
Demand history
Every solicitation we've indexed for this NSN, open and closed — 1 on record. Closed RFQs (expired, cancelled, or awarded) stay here as a record of past demand; they never get removed.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-27-T-4833 | Oct 16, 2026 | Oct 23, 2026 | 302 | Open | View at DIBBS → |
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 16, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,EXTENDED WASHER." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-306-9048/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-306-9048/