Acquisition method (AMC)
3
FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-01-518-1257 FSC 4820
NSN 4820-01-518-1257 (also written 4820015181257; NIIN 01-518-1257) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 2 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 | |
|---|---|---|---|
| SPE7MC-27-T-1582 | 39 | Closes in 9d | Bid → |
Can you win it?
This item is coded to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
C
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, 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 |
|---|---|
| END ITEM IDENTIFICATION AGAV | CONTROL PANEL ASSY;NITROGEN SERVICING UNIT (P/N 1317AS100-2) |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | (INAVY)VALVE, PRESS LIMIT, ACFT |
| CRITICALITY CODE JUSTIFICATION CRTL | AGAV |
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 |
|---|---|---|
| 64304 | 13669 | TESCOM CORP DBA TESCOM DIV TESCOM |
| 64304 | 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
$630.43
Purchases
1
Total spend
$18,282
Nov 4, 2026
Last purchased
2 · 2.0/yr
Purchase records
$36,565
Total demand
$630.43
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Nov 4, 2026 | 29 | $630.43 | $18,282 | CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS (1RZM1) | 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 4, 2026 | SPE7M127V1345 ↗ | CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS | — | $18,282 |
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.
Buying rhythm
How often does the government buy this item, and how long since the last time? Every solicitation and award on one line.
- Solicitation posted
- Award made
Dot size shows quantity. A faint bar joins a solicitation to the award made against it.
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 Nov 2026
TESCOM CORP DBA TESCOM DIV TESCOM
no award yet
no awards on record
Listed source CHASE SUPPLY, INC. DBA CHASE DEFENSE PARTNERS won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7MC-27-T-1582 | Nov 6, 2026 | Nov 16, 2026 | 39 | Open | View at DIBBS → |
| SPE7MC-26-T-219W | Aug 21, 2026 | Sep 3, 2026 | 29 | 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.
- Data last refreshed: 2026-11-05.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,SAFETY RELIEF." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-518-1257/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-518-1257/