PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7RO-Ring

Subsalve Usa Llc · NSN 5331-01-648-3685 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-648-3685 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-648-3685. Primary manufacturer part number: 7R.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Subsalve Usa Llc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-648-3685, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Subsalve Usa Llc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersSubsalve Usa Llc (CAGE 8Z023)
Technical Specifications
ParameterValue
NSN5331-01-648-3685
Primary Part Number7R
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSubsalve Usa Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5340-00-205-7081 INTERCHANGEABLE
Hook,screw
5120-00-277-42437R INTERCHANGEABLE
Wrench,plier
Petersen Mfg Co Inc
5120-00-293-0186 INTERCHANGEABLE
Pliers,retaining Ring
6520-01-153-6147 INTERCHANGEABLE
Knife,plaster
5120-01-336-7766 INTERCHANGEABLE
Wrench,plier
6520-01-416-61777R INTERCHANGEABLE
Chuck,buffing,polis
Handler Manufacturing Company Inc
Cross-Reference Index
Part NumberManufacturer
7R PRIMARY Subsalve Usa Llc (USA)
Related Parts
5340-00-205-7081INTERCHANGEABLE
HOOK,SCREW
5120-00-277-4243INTERCHANGEABLE
WRENCH,PLIER
7R
5120-00-293-0186INTERCHANGEABLE
PLIERS,RETAINING RING
6520-01-153-6147INTERCHANGEABLE
KNIFE,PLASTER
5120-01-336-7766INTERCHANGEABLE
WRENCH,PLIER
6520-01-416-6177INTERCHANGEABLE
CHUCK,BUFFING,POLIS
7R

Frequently Asked Questions

What is NSN 5331-01-648-3685?

NSN 5331-01-648-3685 is a O-Ring, manufactured by Subsalve Usa Llc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-648-3685?

NSN 5331-01-648-3685 has 1 cross-referenced part number: 7R (Subsalve Usa Llc).

What NSN replaces 5331-01-648-3685?

There are 6 known substitutes for 5331-01-648-3685: 5340-00-205-7081, 5120-00-277-4243, 5120-00-293-0186 and 3 more. Verify interchangeability with system specifications before substitution.

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