PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M5-52O-Ring

Headhunter Inc · NSN 5331-01-688-6912 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-688-6912 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-688-6912. Primary manufacturer part number: M5-52.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Headhunter Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-688-6912, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Headhunter Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-688-6912
Primary Part NumberM5-52
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerHeadhunter Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2990-00-012-2557 INTERCHANGEABLE
Flange,exhaust Pipe
5330-00-154-8328M552 INTERCHANGEABLE
Seal,plain Encased
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
6105-00-308-9032 INTERCHANGEABLE
Winding,motor Field
5930-00-396-6111M552 INTERCHANGEABLE
Switch,rotary
Cole Hersee Company
5895-01-052-1342M552 INTERCHANGEABLE
Filter Driver
Omniyig, Inc.
5950-01-330-6646M552 INTERCHANGEABLE
Reactor
Payne Magnetics, Inc.
1240-01-485-0441M552 INTERCHANGEABLE
Sight,holographic
L3 Technologies, Inc. Dba Insight Technology Div Integrated Vision Solutions
5977-01-575-8682 INTERCHANGEABLE
Parts Kit,electrical Contact Bru
Cross-Reference Index
Part NumberManufacturer
M5-52 PRIMARY Headhunter Inc (USA)
Related Parts
2990-00-012-2557INTERCHANGEABLE
FLANGE,EXHAUST PIPE
5330-00-154-8328INTERCHANGEABLE
SEAL,PLAIN ENCASED
M552
6105-00-308-9032INTERCHANGEABLE
WINDING,MOTOR FIELD
5930-00-396-6111INTERCHANGEABLE
SWITCH,ROTARY
M552
5895-01-052-1342INTERCHANGEABLE
FILTER DRIVER
M552
5950-01-330-6646INTERCHANGEABLE
REACTOR
M552
1240-01-485-0441INTERCHANGEABLE
SIGHT,HOLOGRAPHIC
M552
5977-01-575-8682INTERCHANGEABLE
PARTS KIT,ELECTRICAL CONTACT BRU

Frequently Asked Questions

What is NSN 5331-01-688-6912?

NSN 5331-01-688-6912 is a O-Ring, manufactured by Headhunter Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-688-6912?

NSN 5331-01-688-6912 has 1 cross-referenced part number: M5-52 (Headhunter Inc).

What NSN replaces 5331-01-688-6912?

There are 8 known substitutes for 5331-01-688-6912: 2990-00-012-2557, 5330-00-154-8328, 6105-00-308-9032 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M5-52?

Key specifications for M5-52: Part Name Assigned by Controlling Agency: FRONT HOUSING O-RING -P1200079; End Item Identification: PUMP, CENTEIFUGE. 2 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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