Acquisition method (AMC)
3
FSC 5325 × RING,RETAINING
RING,RETAINING
5325-01-510-8500 FSC 5325
NSN 5325-01-510-8500 (also written 5325015108500; NIIN 01-510-8500) is a ring, retaining in Federal Supply Class 5325, Fastening Devices. 3 manufacturer part numbers from 3 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-3926 | 56 | Closes in 2d | Bid → |
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
R
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, 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 |
|---|---|
| INSIDE DIAMETER AARX | INCHES MINIMUM 0.800 AND INCHES MAXIMUM 0.815 |
| MAJOR THICKNESS ABMC | INCHES MINIMUM 0.040 AND INCHES MAXIMUM 0.044 |
| RING STYLE ACXD | — |
| END ITEM IDENTIFICATION AGAV | SEAWOLF CLASS SSN; MRAP BUFFALO MK2A2 |
| USAGE DESIGN ALBY | EXTERNAL |
| SPECIAL FEATURES FEAT | MATERIAL TO COMMERCIAL SPEC PH15.7 MO |
| MATERIAL MATT | STEEL CORROSION RESISTING |
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 |
|---|---|---|
| 91590A131 | 39428 | MCMASTER-CARR SUPPLY CO |
| A109127-101-11 ITEM 10 | 1BQ03 | GENERAL DYNAMICS ADV INFO SYS |
| A109127-101-11 ITEM 10 | 3CX85 | GENERAL DYNAMICS MISSION SYSTEMS, INC. |
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-3926 | Oct 14, 2026 | Oct 21, 2026 | 56 | 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 15, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "RING,RETAINING." nsnexplorer.com, https://nsnexplorer.com/nsn/5325-01-510-8500/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/5325-01-510-8500/