NSN 4820-01-707-2664 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-707-2664. Manufacturer of record part number: RH34PM4PF-316-A100.
The Valve,safety Relief, cataloged under National Stock Number 4820-01-707-2664, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ssp Fittings Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Valve,safety Relief
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Ssp Fittings Corp (CAGE 79926)
Technical Specifications
Parameter
Value
NSN
4820-01-707-2664
Primary Part Number
RH34PM4PF-316-A100
Item Name
Valve,safety Relief
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Ssp Fittings Corp
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-707-2736RH34PM4PF-316-F3300POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Ssp Fittings Corp
4820-01-707-3134LN4K-4PM-316POSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)Ssp Fittings Corp
6685-01-708-3911PM25C1A4P33-D-P-C5POSSIBLE MATCH
GAGE,PRESSURE,DIAL INDICATING
Possible match (shared part number)Reotemp Instrument Corporation
6685-01-708-8202PM25C1A4P18-D-P-CSPOSSIBLE MATCH
GAGE,PRESSURE,DIAL INDICATING
Possible match (shared part number)Reotemp Instrument Corporation
C/1Advisory reference — outside the item-of-supply concept
Naval Sea Systems Command
587-8888637
D/9Drawing number reference only
Naval Sea Systems Command
Related Parts
4820-01-707-2736POSSIBLE MATCH
VALVE,SAFETY RELIEF
RH34PM4PF-316-F3300
4820-01-707-3134POSSIBLE MATCH
VALVE,GLOBE
LN4K-4PM-316
6685-01-708-3911POSSIBLE MATCH
GAGE,PRESSURE,DIAL INDICATING
PM25C1A4P33-D-P-C5
6685-01-708-8202POSSIBLE MATCH
GAGE,PRESSURE,DIAL INDICATING
PM25C1A4P18-D-P-CS
Frequently Asked Questions
What is NSN 4820-01-707-2664?
NSN 4820-01-707-2664 is a Valve,safety Relief, manufactured by Ssp Fittings Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-707-2664?
NSN 4820-01-707-2664 has 1 manufacturer part number on file: RH34PM4PF-316-A100 (Ssp Fittings Corp).
What NSN replaces 4820-01-707-2664?
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-707-2736, 4820-01-707-3134, 6685-01-708-3911. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-707-2664 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.