Acquisition method (AMC)
1
FSC 4310 × RING,PISTON
RING,PISTON
4310-00-039-5087 FSC 4310
NSN 4310-00-039-5087 (also written 4310000395087; NIIN 00-039-5087) is a ring, piston in Federal Supply Class 4310, Compressors and Vacuum Pumps. 3 manufacturer part numbers from 3 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 as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
C
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, second or later time. AMSC C: needs engineering source approval; other sources must qualify first. 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 | — |
| RING STYLE ACXD | — |
| RADIAL WALL THICKNESS ACXF | INCHES NOMINAL 0.1250 |
| OVERALL WIDTH ACXJ | INCHES NOMINAL 0.2470 |
| STANDARD BORE DIAMETER ACXZ | INCHES 5.936 |
| JOINT STYLE ADTE | — |
| SPECIAL FEATURES FEAT | DESIGN ANALYSIS; NUCLEAR HARDNESS CRITICAL |
| MATERIAL MATT | TOP INSIDE PERIPHERY COPPER ALLOY |
| NUCLEAR HARDNESS CRITICAL FEATURE NHCF | HARDENED |
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 |
|---|---|---|
| 990505-11 | 13002 | GOODRICH CORPORATION DIV ADVANCED STRUCTURES LANDING SYSTEMS |
| 990505-11 | 17576 | GOODRICH CORP DBA GOODRICH CORP |
| 990505-11 | 6K4C8 | GOODRICH 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
—
—
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 | |
|---|---|---|---|---|---|
| SPE7M4-26-T-412W | Sep 16, 2026 | Sep 28, 2026 | 24 | 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.
- Full methodology →
Cite this page
Citation
NSN Explorer. "RING,PISTON." nsnexplorer.com, https://nsnexplorer.com/nsn/4310-00-039-5087/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4310-00-039-5087/