Acquisition method (AMC)
1
FSC 4920 × VALVE,RELIEF,3800PS
VALVE,RELIEF,3800PS
4920-01-518-1271 FSC 4920
NSN 4920-01-518-1271 (also written 4920015181271; NIIN 01-518-1271) is a valve, relief, 3800ps in Federal Supply Class 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 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)
P
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, 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 |
|---|---|
| END ITEM IDENTIFICATION AGAV | SPECIAL AIRCRAFT AND ENGINE TOOL AND SUPPORT EQUIPMENT / PARTS (E-NSN ISIL) |
| CRITICALITY CODE JUSTIFICATION CRTL | AGAV |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | INAVY: VALVE, RELIEF, 3800 PS |
| SPECIAL FEATURES FEAT | NEXT HIGHER ASSY IS NSN 3655-01-517-9308; SERVICING, NITROGEN UNIT |
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 |
|---|---|---|
| 64669 | 13669 | TESCOM CORP DBA TESCOM DIV TESCOM |
| 64669 | 1RZM1 | CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS |
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
—
Oct 19, 2026
Last purchased
2 · 2.0/yr
Purchase records
$175,514
Total demand
$37,432
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.
| Action date | Award # | Recipient | Agency | Obligation |
|---|---|---|---|---|
| Aug 26, 2026 | SPE4A625DC114/SPE4A626F386W ↗ | CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS | — | $138,082 |
| Oct 19, 2026 | SPE4A625DC114/SPE4A627F1260 ↗ | CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS | — | $37,432 |
Demand history
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
CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS
last award Oct 2026
TESCOM CORP DBA TESCOM DIV TESCOM
no award yet
no awards on record
Listed source CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS won 2 of the last 2 awards.
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 20, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-10-28.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,RELIEF,3800PS." nsnexplorer.com, https://nsnexplorer.com/nsn/4920-01-518-1271/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4920-01-518-1271/