Acquisition method (AMC)
3
FSC 5310 × WASHER ASSEMBLY
WASHER ASSEMBLY
5310-01-055-6497 FSC 5310
NSN 5310-01-055-6497 (also written 5310010556497; NIIN 01-055-6497) is a washer assembly in Federal Supply Class 5310, Nuts and Washers. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Nov 2026.
Open for bid
No open solicitations on record for this NSN right now.
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
P
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, 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 |
|---|---|
| GENERAL CHARACTERISTICS ITEM DESCRIPTION TEXT | STEEL 17-4PH AMS 5643,1.130 OD,0.430 HOLE DIA.,WASHER IS CUT INTO TWO HALVES,0.220 THICKNESS AMS 5643 |
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 |
|---|---|---|
| 69-26973-1 | 81205 | THE BOEING COMPANY DIV DEFENSE |
| 69-26973-15 | 30828 | KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP |
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
$68.00
Purchases
1
Total spend
$6,460
Nov 2, 2026
Last purchased
2 · 2.0/yr
Purchase records
$12,920
Total demand
$68.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Nov 2, 2026 | 95 | $68.00 | $6,460 | KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP (30828) | 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 |
|---|---|---|---|---|
| Nov 2, 2026 | SPE4A627P4117 ↗ | KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP | — | $6,460 |
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
KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP
last award Nov 2026
THE BOEING COMPANY DIV DEFENSE
no award yet
no awards on record
Listed source KROBACH MFG. CORP. DBA KROBACH MANUFACTURING CORP won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE4A6-27-T-2047 | Oct 13, 2026 | Oct 20, 2026 | 95 | 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 13, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-11-03.
- Full methodology →
Cite this page
Citation
NSN Explorer. "WASHER ASSEMBLY." nsnexplorer.com, https://nsnexplorer.com/nsn/5310-01-055-6497/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/5310-01-055-6497/