PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

13377O-Ring

Greystone, Inc. · NSN 5331-01-631-6051 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-631-6051 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-631-6051. Primary manufacturer part number: 13377.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Greystone, Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-631-6051, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Greystone, Inc.. 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.

Technical Specifications
ParameterValue
NSN5331-01-631-6051
Primary Part Number13377
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerGreystone, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2520-00-081-5155013377 INTERCHANGEABLE
Lock,transmission
Eaton Corporation
5133-00-224-4029 INTERCHANGEABLE
Drill,twist
2815-00-404-361522091 INTERCHANGEABLE
Slinger
Industrial Technologies and Services Llc
5950-00-646-1031838007 INTERCHANGEABLE
Reactor
Thales Usa, Inc. Div Air Mobility Solutions ("ams")
6605-00-922-3355G193-012-001 INTERCHANGEABLE
Oscillator Module
Kearfott Corporation Div Guidance and Navigation Division
6515-01-446-3989329.87 INTERCHANGEABLE
Bending Template,bone Fixation
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
13377 PRIMARY Greystone, Inc. (USA)
Related Parts
2520-00-081-5155INTERCHANGEABLE
LOCK,TRANSMISSION
013377
5133-00-224-4029INTERCHANGEABLE
DRILL,TWIST
2815-00-404-3615INTERCHANGEABLE
SLINGER
22091
5950-00-646-1031INTERCHANGEABLE
REACTOR
838007
6605-00-922-3355INTERCHANGEABLE
OSCILLATOR MODULE
G193-012-001
6515-01-446-3989INTERCHANGEABLE
BENDING TEMPLATE,BONE FIXATION
329.87

Frequently Asked Questions

What is NSN 5331-01-631-6051?

NSN 5331-01-631-6051 is a O-Ring, manufactured by Greystone, Inc., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-631-6051?

NSN 5331-01-631-6051 has 1 cross-referenced part number: 13377 (Greystone, Inc.).

What NSN replaces 5331-01-631-6051?

There are 6 known substitutes for 5331-01-631-6051: 2520-00-081-5155, 5133-00-224-4029, 2815-00-404-3615 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 13377?

Key specifications for 13377: Part Name Assigned by Controlling Agency: O-RING; End Item Identification: WATER PUMP. 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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