Acquisition method (AMC)
1
FSC 5310 × WASHER,FLAT
WASHER,FLAT
5310-01-361-8386 FSC 5310
NSN 5310-01-361-8386 (also written 5310013618386; NIIN 01-361-8386) is a washer, flat in Federal Supply Class 5310, Nuts and Washers. 9 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Sep 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)
R
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. 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 |
|---|---|
| CROSS-SECTIONAL SHAPE STYLE AAGR | — |
| HOLE DIAMETER AAUB | INCHES NOMINAL 0.281 |
| PERIPHERAL SHAPE STYLE ABMW | — |
| CENTER HOLE SHAPE STYLE ABMX | — |
| THICKNESS ABNM | INCHES NOMINAL 0.075 |
| OVERALL DIAMETER ADAV | INCHES NOMINAL 0.625 |
| END ITEM IDENTIFICATION AGAV | MRAP - COMMON NSN - USED ON 2 MRAP VARIANTS AND 2 OTHER WEAPON SYSTEMS; MAXXPRO DASH ISS W/CROWS AND W/OGPK |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | WASHER,FLAT 1/4 (.281X.625X.07 |
| SPECIAL FEATURES FEAT | 5/16 HARDENED WASHERS, .344 NOM ID,.688 NOM OD,.089 NOM THICKNESS.STEEL 1040 TO 1065 PER CEMS A-0,PART 1,QUENCHED AND TEMPERED TO RE36 TO 42. THESE WASHERS ARE INTENDED FOR USE IN HIGH CLAMPING LOADS, TO MINIMIZE EMBEDDING, AND TO AID TORQUING. |
| MATERIAL MATT | OVERALL STEEL |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | OVERALL MFR REF SINGLE MATERIAL RESPONSE 1040 TO 1065 ER CE-S A-0, ART 1, QUENCHED AND TE-ERED TO RC 36 TO 42 |
| PROPRIETARY CHARACTERISTICS PRPY | NPAC |
| SURFACE TREATMENT SFTT | OVERALL ZINC |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | OVERALL MFR REF SINGLE TREATMENT RESPONSE ZINC TRIVALENT (ZN6A) CE-S G-20, CLASS 20, CLASS 6A |
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 |
|---|---|---|
| 12759-00196 | 0Y3H3 | FASTENAL COMPANY DBA FASTENAL CO |
| 25707R1 | 338X5 | ND DEFENSE LLC |
| 25707R1 | 89346 | NAVISTAR INTL CORP TRUCK BR OHIO PLANT |
| 25707R1 | Z0009 | INTERNATIONAL TRUCKS AUSTRALIA LIMITED |
| 33113 | 0Y3H3 | FASTENAL COMPANY DBA FASTENAL CO |
| 5320000007-00 | 338X5 | ND DEFENSE LLC |
| 5320000037-00 | 338X5 | ND DEFENSE LLC |
| ESP-F-16.101-GS | 338X5 | ND DEFENSE LLC |
| ESP-F-16.104-PP | 338X5 | ND DEFENSE LLC |
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
$6.28
Purchases
1
Total spend
$408.20
Sep 28, 2026
Last purchased
2 · 2.0/yr
Purchase records
$816.40
Total demand
$6.28
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Sep 28, 2026 | 65 | $6.28 | $408.20 | PIONEER INDUSTRIES, LLC (66200) | Unknown | Source ↗ |
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 |
|---|---|---|---|---|
| Sep 28, 2026 | SPE4A626V408D ↗ | PIONEER INDUSTRIES, LLC | — | $408.20 |
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.
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
PIONEER INDUSTRIES, LLC
last award Sep 2026
FASTENAL COMPANY DBA FASTENAL CO
no award yet
no awards on record
Listed source INTERNATIONAL TRUCKS AUSTRALIA LIMITED
no award yet
no awards on record
Listed source NAVISTAR INTL CORP TRUCK BR OHIO PLANT
no award yet
no awards on record
Listed source ND DEFENSE LLC
no award yet
no awards on record
Listed source PIONEER INDUSTRIES, LLC won the only award on record. PIONEER INDUSTRIES, LLC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-26-T-35JB | Sep 23, 2026 | Sep 30, 2026 | 65 | Expired | 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 10, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-04.
- Full methodology →
Cite this page
Citation
NSN Explorer. "WASHER,FLAT." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-361-8386/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-361-8386/