Acquisition method (AMC)
3
FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-00-060-7233 FSC 4820
NSN 4820-00-060-7233 (also written 4820000607233; NIIN 00-060-7233) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 5 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 to be bought directly from the actual manufacturer (AMC 3).
Suffix (AMSC)
L
Competition
Coded for a named source
AMC 3: buy directly from the actual manufacturer, second or later time. AMSC L: annual buy value is below the screening threshold. 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 |
|---|---|
| OPENING PRESSURE SETTING CSDC | POUNDS PER SQUARE INCH 25.0 |
| MAXIMUM OPERATING TEMP AEHZ | SINGLE RESPONSE FAHRENHEIT 400.0 |
| NOMINAL PIPE SIZE ACCOMMODATED AAAR | FIRST END INCHES 0.750 |
| NOMINAL PIPE SIZE ACCOMMODATED AAAR | SECOND END INCHES 0.750 |
| THREAD DIRECTION AAJF | ALL ENDS RIGHT-HAND |
| FEATURES PROVIDED CBBL | PRESSURE TIGHT OUTLET SIDE |
| ADJUSTABLE PRESSURE RANGE CQCY | POUNDS PER SQUARE INCH 1.0 TO 250.0 |
| NOMINAL THREAD SIZE CQJX | ALL ENDS INCHES 0.750 |
| CONNECTION STYLE AHNC | — |
| MATERIAL MATT | OVERALL COPPER ALLOY |
| MEDIA FOR WHICH DESIGNED MEDA | FIRST RESPONSE STEAM |
| MEDIA FOR WHICH DESIGNED MEDA | SECOND RESPONSE WATER-OIL-GAS |
| STYLE DESIGNATOR STYL | — |
| FLOW CONTROL DEVICE ADQU | DISK |
| BONNET TYPE ADSR | INSIDE SPRING |
| CONNECTION TYPE AWLS | FIRST END THREADED EXTERNAL PIPE |
| BONNET ATTACHMENT METHOD ADST | THREADED |
| DISK LOADING METHOD ADSU | SPRING |
| THREAD SERIES DESIGNATOR THSD | ALL ENDS NPT |
| OPERATING PRESSURE CQQF | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 250.0 |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| CONNECTION TYPE AWLS | SECOND END THREADED INTERNAL PIPE |
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 |
|---|---|---|
| 3-4IN 25PSI | 97578 | TIMKEN GEARS & SERVICES INC. DBA PHILADELPHIA GEAR DIV TIMKEN POWER SYSTEMS |
| 658 | 37239 | LUNKENHEIMER CO |
| 658 SX 3/4 X 3/4 IN | 37239 | LUNKENHEIMER CO |
| 69-3/4-25 | 93641 | AQUATROL INC |
| FIG658 3/AIN 25 | 37239 | LUNKENHEIMER CO |
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
$189.11
Purchases
1
Total spend
$189.11
Oct 5, 2026
Last purchased
2 · 2.0/yr
Purchase records
$378.22
Total demand
$189.11
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 5, 2026 | 1 | $189.11 | $189.11 | LARKOS PACKING AND DISTRIBUTION INC. (6PZL1) | 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 5, 2026 | SPE7M127V0143 ↗ | LARKOS PACKING AND DISTRIBUTION INC. | — | $189.11 |
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
LARKOS PACKING AND DISTRIBUTION INC.
last award Oct 2026
AQUATROL INC
no award yet
no awards on record
Listed source LUNKENHEIMER CO
no award yet
no awards on record
Listed source TIMKEN GEARS & SERVICES INC. DBA PHILADELPHIA GEAR DIV TIMKEN POWER SYSTEMS
no award yet
no awards on record
Listed source LARKOS PACKING AND DISTRIBUTION INC. won the only award on record. LARKOS PACKING AND DISTRIBUTION INC. won without being a listed source.
| Solicitation | Issued | Closes / closed | Qty | Status | |
|---|---|---|---|---|---|
| SPE7M1-26-T-391M | Sep 30, 2026 | Oct 13, 2026 | 1 | 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: 2026-10-08.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,SAFETY RELIEF." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-00-060-7233/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-00-060-7233/