Acquisition method (AMC)
3
FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-01-384-1089 FSC 4820
NSN 4820-01-384-1089 (also written 4820013841089; NIIN 01-384-1089) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 14 manufacturer part numbers from 10 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 to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
D
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. 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 |
|---|---|
| THREAD DIRECTION AAJF | ALL ENDS RIGHT-HAND |
| FLOW CONTROL DEVICE ADQU | DISK |
| MAXIMUM OPERATING TEMP AEHZ | SINGLE RESPONSE FAHRENHEIT 250.0 |
| END ITEM IDENTIFICATION AGAV | STRATEGIC SEALIFT CONVERSION SHIPS CLASS |
| CONNECTION STYLE AHNC | — |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| CONNECTION TYPE AWLS | SECOND END THREADED INTERNAL PIPE |
| CONNECTION TYPE AWLS | FIRST END THREADED EXTERNAL PIPE |
| ADJUSTABLE PRESSURE RANGE CQCY | POUNDS PER SQUARE INCH 50.0 TO 6000.0 |
| NOMINAL THREAD SIZE CQJX | ALL ENDS INCHES 0.250 |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 6000.0 |
| SPECIAL FEATURES FEAT | VALVE WITHOUT A SPRING PER CHARLES MARKLEY, HD |
| MATERIAL MATT | BODY STEEL COMP 316 |
| MEDIA FOR WHICH DESIGNED MEDA | SINGLE RESPONSE AIR |
| STYLE DESIGNATOR STYL | — |
| THREAD SERIES DESIGNATOR THSD | ALL ENDS NPT |
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 |
|---|---|---|
| 003X0204AE | 33742 | MAKO COMPRESSORS, LLC |
| 18N0006 | 34351 | CHART INC DIV DISTRIBUTION AND STORAGE |
| CONSX0204 | 33742 | MAKO COMPRESSORS, LLC |
| IBERC-SS-4R3A5 | 7826B | SA IBERICA DE SUMINISTROS Y CONSTRUCCIONES IBERCO |
| SM444/1 | U2066 | A.T. JUNIPER (LIVERPOOL) LIMITED |
| SM444/1 | U9113 | MANCHESTER FLUID SYSTEM TECHNOLOGIES LTD |
| SS-4R3A5 | 11704 | SWAGELOK CANADA LTD |
| SS-4R3A5 | 18034 | NUPRO CO |
| SS-4R3A5 | 3T9T9 | SWAGELOK CO |
| SS-4R3A5 | 64055 | OKLAHOMA SAFETY EQUIPMENT CO INC DBA OSECO DIV OKLAHOMA SAFETY EQUIPMENT CO. (DBA OSECO) |
| SS-4R3A5F | 02570 | SWAGELOK CO DBA USE CAGE CODE 3T9T9 FOR CATALOGING |
| X0204 | 33742 | MAKO COMPRESSORS, LLC |
| X0204AE | 33742 | MAKO COMPRESSORS, LLC |
| X0204CS | 33742 | MAKO COMPRESSORS, LLC |
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
$148.60
Purchases
1
Total spend
$12,631
Oct 1, 2026
Last purchased
2 · 2.0/yr
Purchase records
$25,262
Total demand
$148.60
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | 85 | $148.60 | $12,631 | III WILLIAMS LLC (1WP64) | 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 |
|---|---|---|---|---|
| Oct 1, 2026 | SPE7M427V0069 ↗ | III WILLIAMS LLC | — | $12,631 |
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
III WILLIAMS LLC
last award Oct 2026
A.T. JUNIPER (LIVERPOOL) LIMITED
no award yet
no awards on record
Listed source CHART INC DIV DISTRIBUTION AND STORAGE
no award yet
no awards on record
Listed source MAKO COMPRESSORS, LLC
no award yet
no awards on record
Listed source MANCHESTER FLUID SYSTEM TECHNOLOGIES LTD
no award yet
no awards on record
Listed source NUPRO CO
no award yet
no awards on record
Listed source OKLAHOMA SAFETY EQUIPMENT CO INC DBA OSECO DIV OKLAHOMA SAFETY EQUIPMENT CO. (DBA OSECO)
no award yet
no awards on record
Listed source SA IBERICA DE SUMINISTROS Y CONSTRUCCIONES IBERCO
no award yet
no awards on record
Listed source III WILLIAMS LLC won the only award on record. III WILLIAMS LLC won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M4-26-T-440V | Sep 25, 2026 | Oct 5, 2026 | 85 | 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: 2026-10-04.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,SAFETY RELIEF." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-384-1089/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-384-1089/