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. 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)
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 |
| VALVE OPERATION METHOD AQLR | HYDRAULIC |
| MATERIAL MATT | SEAT ALUMINUM ALLOY |
| CONNECTION STYLE AHNC | — |
| STYLE DESIGNATOR STYL | — |
| THREAD SERIES DESIGNATOR THSD | FIRST END UN |
| MOUNTING FACILITY AZGM | THREADED FASTENER |
| DISK LOADING METHOD ADSU | SPRING |
| THREAD CLASS AAJD | 3B |
| THREAD DIRECTION AAJF | FIRST END RIGHT-HAND |
| FLOW CONTROL DEVICE ADQU | POPPET |
| 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 |
| MATERIAL MATT | BODY ALUMINUM ALLOY |
| 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 |
| CONNECTION TYPE AWLS | FIRST END THREADED INTERNAL BOSS |
| FEATURES PROVIDED CBBL | VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE |
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
$610.00
Purchases
1
Total spend
$13,420
Oct 29, 2026
Last purchased
3 · 3.0/yr
Purchase records
$38,640
Total demand
$610.00
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 29, 2026 | 22 | $610.00 | $13,420 | SKYSPARES PARTS INC (6M132) | 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 |
|---|---|---|---|---|
| Aug 13, 2026 | SPE7M226V4807 ↗ | SKYSPARES PARTS INC | — | $11,800 |
| Oct 29, 2026 | SPE7M427V0562 ↗ | SKYSPARES PARTS INC | — | $13,420 |
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.
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
SKYSPARES PARTS INC
last award Oct 2026
HYDRO-AIRE AEROSPACE CORP
no award yet
no awards on record
Listed source THE BOEING COMPANY DIV DEFENSE
no award yet
no awards on record
Listed source SKYSPARES PARTS INC won the only award on record.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M4-27-T-0655 | Oct 13, 2026 | Oct 23, 2026 | 22 | 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 13, 2026.
- Contract action totals: USAspending, context only.
- Data last refreshed: 2026-11-03.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,SAFETY RELIEF." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-529-5496/. Data as of November 7, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-529-5496/