PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26028O-Ring

Charles Reed Knight Jr Dba Knight's Armament Company · NSN 5331-01-577-3146 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-577-3146 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-577-3146. Primary manufacturer part number: 26028.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Charles Reed Knight Jr Dba Knight's Armament Company
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-577-3146, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Charles Reed Knight Jr Dba Knight's Armament Company. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-577-3146
Primary Part Number26028
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCharles Reed Knight Jr Dba Knight's Armament Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2520-00-081-5155013377 INTERCHANGEABLE
Lock,transmission
Eaton Corporation
6130-00-147-378326028 INTERCHANGEABLE
Power Supply
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
1650-00-347-841326028 INTERCHANGEABLE
Piston and Liner,va
Hydro-Aire Aerospace Corp
5330-00-514-443126028 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
3510-01-173-7896 INTERCHANGEABLE
Chassis,washing Machine
Cross-Reference Index
Part NumberManufacturer
26028 PRIMARY Charles Reed Knight Jr Dba Knight's Armament Company (USA)
Related Parts
2520-00-081-5155INTERCHANGEABLE
LOCK,TRANSMISSION
013377
6130-00-147-3783INTERCHANGEABLE
POWER SUPPLY
26028
1650-00-347-8413INTERCHANGEABLE
PISTON AND LINER,VA
26028
5330-00-514-4431INTERCHANGEABLE
SEAL,PLAIN ENCASED
26028
3510-01-173-7896INTERCHANGEABLE
CHASSIS,WASHING MACHINE

Frequently Asked Questions

What is NSN 5331-01-577-3146?

NSN 5331-01-577-3146 is a O-Ring, manufactured by Charles Reed Knight Jr Dba Knight's Armament Company, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-577-3146?

NSN 5331-01-577-3146 has 1 cross-referenced part number: 26028 (Charles Reed Knight Jr Dba Knight's Armament Company).

What NSN replaces 5331-01-577-3146?

There are 5 known substitutes for 5331-01-577-3146: 2520-00-081-5155, 6130-00-147-3783, 1650-00-347-8413 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26028?

Key specifications for 26028: End Item Identification: AN/PVS28:UNIVERSAL NIGHT SIGHT LONG RANGE LOW PROFILE (UNS LRLPE); Part Name Assigned by Controlling Agency: O-RING,BATTERY DOOR. 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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