Acquisition method (AMC)
1
FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-00-529-5496 FSC 4820
NSN 4820-00-529-5496 (also written 4820005295496; NIIN 00-529-5496) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 7 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 | |
|---|---|---|---|
| SPE7M4-27-T-0655 | 22 | Closes in 4d | Bid → |
Can you win it?
This item is coded as suitable for competitive acquisition (AMC 1).
Suffix (AMSC)
R
Competition
Coded for competition
AMC 1: suitable for competitive acquisition, 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 |
|---|---|
| VALVE DISCHARGE FLOW RATE ADSY | GALLONS PER MINUTE 20.0 |
| THREAD CLASS AAJD | 3B |
| MATERIAL MATT | STEM ALUMINUM ALLOY |
| THREAD QUANTITY PER INCH CMLP | 12 |
| NOMINAL THREAD SIZE CQJX | FIRST END INCHES 1.500 |
| OPENING PRESSURE SETTING CSDC | POUNDS PER SQUARE INCH 50.0 |
| FEATURES PROVIDED CBBL | VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE |
| THREAD SERIES DESIGNATOR THSD | FIRST END UN |
| MOUNTING FACILITY AZGM | THREADED FASTENER |
| THREAD DIRECTION AAJF | FIRST END RIGHT-HAND |
| FLOW CONTROL DEVICE ADQU | POPPET |
| DISK LOADING METHOD ADSU | SPRING |
| SURFACE TREATMENT SFTT | LOCATION NOT OTHERWISE SPECIFIED ANODIZE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION STDC | LOCATION NOT OTHERWISE SPECIFIED MIL SPEC SINGLE TREATMENT RESPONSE -IL-A-8625,TY 2 |
| STYLE DESIGNATOR STYL | — |
| CONNECTION TYPE AWLS | FIRST END THREADED INTERNAL BOSS |
| MATERIAL MATT | BODY ALUMINUM ALLOY |
| MATERIAL MATT | SEAT ALUMINUM ALLOY |
| VALVE OPERATION METHOD AQLR | HYDRAULIC |
| CONNECTION STYLE AHNC | — |
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 |
|---|---|---|
| 10-20153 | 81205 | THE BOEING COMPANY DIV DEFENSE |
| 10-2749-1 | 81205 | THE BOEING COMPANY DIV DEFENSE |
| 313690-1 | 6M132 | SKYSPARES PARTS INC |
| 313690-1 | 81205 | THE BOEING COMPANY DIV DEFENSE |
| 313690-1 | 81982 | HYDRO-AIRE AEROSPACE CORP |
| 314500-5 | 81205 | THE BOEING COMPANY DIV DEFENSE |
| 314500-5 | 81982 | HYDRO-AIRE AEROSPACE 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 — 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 | |
|---|---|---|---|---|---|
| SPE7M4-27-T-0655 | Oct 13, 2026 | Oct 23, 2026 | 22 | 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 13, 2026.
- Contract action totals: USAspending, context only.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,SAFETY RELIEF." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-529-5496/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-529-5496/