Acquisition method (AMC)
3
FSC 4310 × RING,PISTON
RING,PISTON
4310-01-031-8351 FSC 4310
NSN 4310-01-031-8351 (also written 4310010318351; NIIN 01-031-8351) is a ring, piston in Federal Supply Class 4310, Compressors and Vacuum Pumps. 4 manufacturer part numbers from 4 suppliers are on record. No purchases are on record yet.
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)
B
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC B: must be bought from the sources named on a source control or selected item drawing. 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.
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 |
|---|---|---|
| 2505431 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
| 2505431 | 74069 | HASTINGS MANUFACTURING CO |
| C-10-148 | 45225 | BOSCH AUTOMOTIVE SERVICE SOLUTIONS INC. |
| C-10-148 | 53781 | SPX 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
—
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 — 2 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 | |
|---|---|---|---|---|---|
| SPE7M1-27-T-0161 | Oct 6, 2026 | Oct 16, 2026 | 9,170 | Expired | View at DIBBS → |
| SPE7M1-26-T-381U | Sep 25, 2026 | Oct 5, 2026 | 9,170 | Cancelled | 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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "RING,PISTON." nsnexplorer.com, https://nsnexplorer.com/nsn/4310-01-031-8351/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4310-01-031-8351/