Acquisition method (AMC)
3
FSC 4820 × VALVE,SAFETY RELIEF
VALVE,SAFETY RELIEF
4820-01-507-0620 FSC 4820
NSN 4820-01-507-0620 (also written 4820015070620; NIIN 01-507-0620) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 5 manufacturer part numbers from 2 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 |
|---|---|
| NOMINAL PIPE SIZE ACCOMMODATED AAAR | FIRST END INCHES 0.500 |
| NOMINAL PIPE SIZE ACCOMMODATED AAAR | SECOND END INCHES 1.000 |
| FLOW CONTROL DEVICE ADQU | DISK |
| BONNET TYPE ADSR | INSIDE SPRING |
| BONNET ATTACHMENT METHOD ADST | BOLTED |
| DISK LOADING METHOD ADSU | SPRING |
| END ITEM IDENTIFICATION AGAV | VALVE RELF |
| CONNECTION STYLE AHNC | — |
| VALVE OPERATION METHOD AQLR | AUTOMATIC |
| CONNECTION TYPE AWLS | ALL ENDS UNTHREADED INTERNAL PIPE |
| ADJUSTABLE PRESSURE RANGE CQCY | POUNDS PER SQUARE INCH 79.0 TO 95.0 |
| OPENING PRESSURE SETTING CSDC | POUNDS PER SQUARE INCH 92.0 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY CXCY | 2700 KN SERIES RELIEF VALVE - MODEL 27CC13M-U20/S4 UNION FITTING CONNECTIONS GAS SERVICE. |
| SPECIAL FEATURES FEAT | ALL ASSEMBLIES INCLUDE NUT AND TAILPIECE. SHOCK AND VIBRATION PER MIL-S-901D & MIL-STD-167-1, COMPLETED. MIL-S-901D |
| MATERIAL MATT | BODY STEEL COMP 316 |
| MATERIAL DOCUMENT AND CLASSIFICATION MDCL | BODY ASSN STD SINGLE MATERIAL RESPONSE 316SS |
| MEDIA FOR WHICH DESIGNED MEDA | SINGLE RESPONSE GAS, INERT |
| STYLE DESIGNATOR STYL | — |
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 |
|---|---|---|
| 27CC13M-U20/S4 | 72352 | CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA FARRIS ENGINEERING DIV CURTISS-WRIGHT VALVES DIVISION- FARRIS |
| 27CC13M-U20/S4 | 95169 | CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA CURTISS-WRIGHT FLOW CONTROL CO DIV TARGET ROCK DIVISION |
| 27CC13M-U20/S4-92 PSI | 72352 | CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA FARRIS ENGINEERING DIV CURTISS-WRIGHT VALVES DIVISION- FARRIS |
| 30151 | 72352 | CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA FARRIS ENGINEERING DIV CURTISS-WRIGHT VALVES DIVISION- FARRIS |
| 30151 | 95169 | CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA CURTISS-WRIGHT FLOW CONTROL CO DIV TARGET ROCK DIVISION |
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
$18,501.25
Purchases
1
Total spend
$18,501
Oct 16, 2026
Last purchased
2 · 2.0/yr
Purchase records
$37,003
Total demand
$18,501.25
Latest unit price
Purchase history
| Awarded | Qty | Unit price | Total | Supplier | Agency | Source |
|---|---|---|---|---|---|---|
| Oct 16, 2026 | 1 | $18,501.25 | $18,501 | 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 16, 2026 | SPE7MC27V0204 ↗ | LARKOS PACKING AND DISTRIBUTION INC. | — | $18,501 |
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
CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA CURTISS-WRIGHT FLOW CONTROL CO DIV TARGET ROCK DIVISION
no award yet
no awards on record
Listed source CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA FARRIS ENGINEERING DIV CURTISS-WRIGHT VALVES DIVISION- FARRIS
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 | |
|---|---|---|---|---|---|
| SPE7MC-27-T-0094 | Oct 6, 2026 | Oct 16, 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: 2026-10-17.
- Full methodology →
Cite this page
Citation
NSN Explorer. "VALVE,SAFETY RELIEF." nsnexplorer.com, https://nsnexplorer.com/nsn/4820-01-507-0620/. Data as of October 19, 2026.
Link
https://nsnexplorer.com/nsn/4820-01-507-0620/