PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SR4G-540Regulator

Victor Equipment Co · NSN 6680-00-777-6635 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-777-6635 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-777-6635. Primary manufacturer part number: SR4G-540.
Features
  • Regulator — FSC 6680
  • General Characteristics Item Description: DIAPHRAGM ASSEMBLY,CENTRALIZER ASSEMBLY,DIAPHRAGM,BODY,@SAFETY VALVE,0 TO 1000 P.S.I. DELIVERY RANGE
  • 6 verified cross-references
  • Primary manufacturer: Victor Equipment Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Regulator, cataloged under National Stock Number 6680-00-777-6635, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Victor Equipment Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-777-6635
Primary Part NumberSR4G-540
Item NameRegulator
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerVictor Equipment Co
StatusACTIVE
General Characteristics Item DescriptionDIAPHRAGM ASSEMBLY,CENTRALIZER ASSEMBLY,DIAPHRAGM,BODY,@SAFETY VALVE,0 TO 1000 P.S.I. DELIVERY RANGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3895-00-155-8246SR10 INTERCHANGEABLE
Blade,concrete,diamond
Dixie Diamond Manufacturing Inc
6240-00-262-28941001374 INTERCHANGEABLE
Lamp,incandescent
Burton Medical Products Corporation
7420-00-519-1747 INTERCHANGEABLE
Calculator,electronic
3010-00-528-9944015-0257-000 INTERCHANGEABLE
Coupling,shaft,rigid
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5930-00-584-400928111 INTERCHANGEABLE
Switch,code Indicating Wheel
Janco Corporation Dba Janco Corp Div Mason Controls
5930-01-260-77917909131-00 INTERCHANGEABLE
Switch,push
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
4820-01-307-6148 INTERCHANGEABLE
Parts Kit,safety Relief Valve
6150-01-379-7135 INTERCHANGEABLE
Power Strip,electrical Outlet
5910-01-397-05920281110000 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Riimic, Llc Dba Sunair Electronics
4820-01-479-067028.111 INTERCHANGEABLE
Valve,stop-Check
Lutz-Jesco America Corp
Cross-Reference Index
Part NumberManufacturer
28111 Davey Compressor Co Div of Keco Industries Inc (USA)
SR10-967 Victor Equipment Co (USA)
28111 Hdt Expeditionary Systems Inc (USA)
28111 Drs Environmental Systems Inc (USA)
SR4G-540 PRIMARY Victor Equipment Co (USA)
SR10 Victor Equipment Co (USA)
Related Parts
3895-00-155-8246INTERCHANGEABLE
BLADE,CONCRETE,DIAMOND
SR10
6240-00-262-2894INTERCHANGEABLE
LAMP,INCANDESCENT
1001374
7420-00-519-1747INTERCHANGEABLE
CALCULATOR,ELECTRONIC
3010-00-528-9944INTERCHANGEABLE
COUPLING,SHAFT,RIGID
015-0257-000
5930-00-584-4009INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
28111
5930-01-260-7791INTERCHANGEABLE
SWITCH,PUSH
7909131-00
4820-01-307-6148INTERCHANGEABLE
PARTS KIT,SAFETY RELIEF VALVE
6150-01-379-7135INTERCHANGEABLE
POWER STRIP,ELECTRICAL OUTLET
5910-01-397-0592INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
0281110000
4820-01-479-0670INTERCHANGEABLE
VALVE,STOP-CHECK
28.111
5945-01-600-2753INTERCHANGEABLE
RELAY,SOLID STATE
SR-10

Frequently Asked Questions

What is NSN 6680-00-777-6635?

NSN 6680-00-777-6635 is a Regulator, manufactured by Victor Equipment Co, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-777-6635?

NSN 6680-00-777-6635 has 6 cross-referenced part numbers: 28111 (Davey Compressor Co Div of Keco Industries Inc), SR10-967 (Victor Equipment Co), 28111 (Hdt Expeditionary Systems Inc), 28111 (Drs Environmental Systems Inc), SR4G-540 (Victor Equipment Co) and 1 more.

What NSN replaces 6680-00-777-6635?

There are 11 known substitutes for 6680-00-777-6635: 3895-00-155-8246, 6240-00-262-2894, 7420-00-519-1747 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SR4G-540?

Key specifications for SR4G-540: General Characteristics Item Description: DIAPHRAGM ASSEMBLY,CENTRALIZER ASSEMBLY,DIAPHRAGM,BODY,@SAFETY VALVE,0 TO 1000 P.S.I. DELIVERY RANGE. 1 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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