PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32655-1Valve,safety Relief

Puget Sound Commerce Center, Inc. · NSN 4820-00-300-7767 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-300-7767 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-300-7767. Primary manufacturer part number: 32655-1.
Features
  • Valve,safety Relief — FSC 4820
  • Operating Pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
  • Nominal Thread Size: 0.250 INCHES ALL ENDS IN
  • Flow Control Device: DISK
  • Bonnet Type: INSIDE SPRING
  • Valve Operation Method: AUTOMATIC
  • Bonnet Attachment Method: INTEGRAL
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Flow Control Device construction
General Description

The Valve,safety Relief, cataloged under National Stock Number 4820-00-300-7767, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Puget Sound Commerce Center, Inc.. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 33 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-300-7767
Primary Part Number32655-1
Item NameValve,safety Relief
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPuget Sound Commerce Center, Inc.
StatusACTIVE
Operating Pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Media for Which DesignedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
Nominal Thread Size0.250 INCHES ALL ENDS IN
Flow Control DeviceDISK
Bonnet TypeINSIDE SPRING
Valve Operation MethodAUTOMATIC
Bonnet Attachment MethodINTEGRAL
Thread Series DesignatorNPT ALL ENDS
MaterialSTEEL FLOW CONTROL DEVICE
Thread DirectionRIGHT-HAND ALL ENDS
MaterialCOPPER ALLOY SEAT
MaterialSTEEL STEM
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
Disk Loading MethodSPRING
Adjustable Pressure Range+40.0 TO 140.0 POUNDS PER SQUARE INCH LBS
MaterialCOPPER ALLOY BODY
Style DesignatorANGLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4720-00-066-475781725 INTERCHANGEABLE
Hose Assembly,nonmetallic
Mcneil Ohio Corp
5120-01-211-3303326551 INTERCHANGEABLE
Inserter,seal
Brp Us Inc
6665-01-233-25990000114 INTERCHANGEABLE
Strap,shoulder
Overhoff Technology Corp
4730-01-307-1980H-502 INTERCHANGEABLE
Thrust Plate
Vernatherm Llc
6850-01-580-429258775 INTERCHANGEABLE
Sealer,chemical
Loctite Corp
5306-01-621-982016282-037 INTERCHANGEABLE
Bolt,machine
Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
Cross-Reference Index
Part NumberManufacturer
3-1601APC28 Aqua-Chem Inc Cleaver-Brooks Div (USA)
C713FPC51 Ames Iron Works (USA)
3-858HPC28 Aqua-Chem Inc Cleaver-Brooks Div (USA)
3-1569APC28 Aqua-Chem Inc Cleaver-Brooks Div (USA)
671APC51 Ames Iron Works (USA)
44669SHEET6PC182 Todd Shipyards Corp (USA)
3-1425APC28 Aqua-Chem Inc Cleaver-Brooks Div (USA)
H502 Monarch Mfg Works Inc (USA)
32655-1 PRIMARY Puget Sound Commerce Center, Inc. (USA)
3-1409CPC28 Aqua-Chem Inc Cleaver-Brooks Div (USA)
3-1696APC28 Aqua-Chem Inc Cleaver-Brooks Div (USA)
904167 Aqua-Chem Inc Cleaver-Brooks Div (USA)
3-1569BPC28 Aqua-Chem Inc Cleaver-Brooks Div (USA)
G49BR Monarch Mfg Works Inc (USA)
1-4SVB15X1 Ruthman Pump and Engineering Inc Dba Fulflo Specialties Co Div Fulflo Specialties Co. (USA)
1-4SVB15X1 Ames Iron Works (USA)
817-25 Aqua-Chem Inc Cleaver-Brooks Div (USA)
6421B2PC51 Ames Iron Works (USA)
A1PC51 Ames Iron Works (USA)
11039M0G49BR100 Ames Iron Works (USA)
Related Parts
4720-00-066-4757INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
81725
5120-01-211-3303INTERCHANGEABLE
INSERTER,SEAL
326551
6665-01-233-2599INTERCHANGEABLE
STRAP,SHOULDER
0000114
4730-01-307-1980INTERCHANGEABLE
THRUST PLATE
H-502
6850-01-580-4292INTERCHANGEABLE
SEALER,CHEMICAL
58775
5306-01-621-9820INTERCHANGEABLE
BOLT,MACHINE
16282-037

Frequently Asked Questions

What is NSN 4820-00-300-7767?

NSN 4820-00-300-7767 is a Valve,safety Relief, manufactured by Puget Sound Commerce Center, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-300-7767?

NSN 4820-00-300-7767 has 33 cross-referenced part numbers: 3-1601APC28 (Aqua-Chem Inc Cleaver-Brooks Div), C713FPC51 (Ames Iron Works), 3-858HPC28 (Aqua-Chem Inc Cleaver-Brooks Div), 3-1569APC28 (Aqua-Chem Inc Cleaver-Brooks Div), 671APC51 (Ames Iron Works) and 28 more.

What NSN replaces 4820-00-300-7767?

There are 6 known substitutes for 4820-00-300-7767: 4720-00-066-4757, 5120-01-211-3303, 6665-01-233-2599 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 32655-1?

Key specifications for 32655-1: Operating Pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; Nominal Thread Size: 0.250 INCHES ALL ENDS IN; Flow Control Device: DISK. 18 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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