Acquisition method (AMC)
1
FSC 5310 × NUT,SELF-LOCKING,EXTENDED WASHER
NUT,SELF-LOCKING,EXTENDED WASHER
5310-01-159-8178 FSC 5310
NSN 5310-01-159-8178 (also written 5310011598178; NIIN 01-159-8178) is a nut, self-locking, extended washer in Federal Supply Class 5310, Nuts and Washers. 6 manufacturer part numbers from 4 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)
Q
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC Q: the government lacks adequate data or rights, but breakout to competition is expected. 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 | 2B |
| THREAD DIRECTION AAJF | RIGHT-HAND |
| LOCKING FEATURE AAUM | PREVAILING TORQUE WITH METALLIC INSERT |
| WASHER OUTSIDE DIAMETER AAVX | INCHES MINIMUM 1.000 AND INCHES MAXIMUM 1.031 |
| OVERALL HEIGHT ABKW | INCHES NOMINAL 0.555 |
| NUT STYLE ACTA | — |
| WASHER THICKNESS ADEM | INCHES NOMINAL 0.080 |
| END ITEM IDENTIFICATION AGAV | HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); 2320-01-304-2277, TRUCK, PLS (PALLETIZED LOADING SYSTEM); 2320-01-442-1940,TRUCK,CBT,(COMMAND BRIDGE TRANSPORTER); 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK); 2320-01-097-0260 HIAB CRANE (HEMTT); MRAP - M-ATV UI |
| WIDTH ACROSS FLATS ASDB | INCHES MINIMUM 0.736 AND INCHES MAXIMUM 0.752 |
| THREAD SERIES BZRR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH CMLP | 13 |
| HARDNESS RATING CQFM | ROCKWELL C MINIMUM 24.0 AND ROCKWELL C MAXIMUM 32.0 |
| NOMINAL THREAD SIZE CQJX | INCHES 0.500 |
| CRITICALITY CODE JUSTIFICATION CRTL | FEAT |
| SPECIAL FEATURES FEAT | WEAPON SYSTEM ESSENTIAL |
| MATERIAL MATT | OVERALL STEEL |
| PROPRIETARY CHARACTERISTICS PRPY | NPAC |
| SURFACE TREATMENT SFTT | OVERALL PHOSPHATE |
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 |
|---|---|---|
| 110310A | 45152 | OSHKOSH CORP |
| 110310A | 75Q65 | OSHKOSH DEFENSE LLC |
| 110310A | A00AM | E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES |
| 119504-A | 45152 | OSHKOSH CORP |
| 5075143 | 17353 | SPIRALOCK CORP DBA SPIRALOCK CORP DIV SPIRALOCK CORPORATION |
| S075143 | 17353 | SPIRALOCK CORP DBA SPIRALOCK CORP DIV SPIRALOCK CORPORATION |
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 6, 2026
Last purchased
1 · 1.0/yr
Purchase records
$3,199
Total demand
$3,199
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 6, 2026 | SPE4A624D5283/SPE4A627F0293 ↗ | MIDWAY INDUSTRIAL SUPPLY INC. | — | $3,199 |
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
MIDWAY INDUSTRIAL SUPPLY INC.
last award Oct 2026
E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES
no award yet
no awards on record
Listed source OSHKOSH CORP
no award yet
no awards on record
Listed source OSHKOSH DEFENSE LLC
no award yet
no awards on record
Listed source SPIRALOCK CORP DBA SPIRALOCK CORP DIV SPIRALOCK CORPORATION
no award yet
no awards on record
Listed source MIDWAY INDUSTRIAL SUPPLY INC. won the only award on record. MIDWAY INDUSTRIAL SUPPLY INC. 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 10, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-08.
- Full methodology →
Cite this page
Citation
NSN Explorer. "NUT,SELF-LOCKING,EXTENDED WASHER." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-159-8178/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-159-8178/