PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25177O-Ring

Defense Maritime Solutions, Inc. · NSN 5331-00-892-1944 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-892-1944 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-892-1944. Primary manufacturer part number: 25177.
Features
  • O-Ring — FSC 5331
  • Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
  • Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
  • Center Hole Diameter: 19.938 INCHES MINIMUM AND 19.998 INCHES MAXIMUM IN
  • Material: RUBBER
  • Elongation Percentage: 160 MAXIMUM
  • 9 verified cross-references
  • Primary manufacturer: Defense Maritime Solutions, Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-892-1944, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Defense Maritime Solutions, Inc.. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-892-1944
Primary Part Number25177
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerDefense Maritime Solutions, Inc.
StatusACTIVE
Temp Rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
Cross-Sectional Height0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Center Hole Diameter19.938 INCHES MINIMUM AND 19.998 INCHES MAXIMUM IN
MaterialRUBBER
Elongation Percentage160 MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-201-9932SW-1054-1 INTERCHANGEABLE
Switch,toggle
Bae Systems Information and Electronic Systems Integration Inc.
5120-00-222-15330 INTERCHANGEABLE
Hand Screw
Adjustable Clamp Co
4820-00-243-74191A33F8-60S INTERCHANGEABLE
Valve,relief,pressure and Temper
Danfoss Fluid Power Inc Easley Opn
5310-00-559-0922507546 INTERCHANGEABLE
Washer,finishing
Belfort Instrument Company
3120-00-662-2181 INTERCHANGEABLE
Bearing,sleeve
5940-00-727-5243 INTERCHANGEABLE
Terminal,stud
5365-01-013-564825177 INTERCHANGEABLE
Shim
Williams International Co., L.l.c.
5805-01-063-94906614 INTERCHANGEABLE
Panel,telephone Switchboard
L3 Technologies, Inc. Div Communication Systems-West
5935-01-114-8827 INTERCHANGEABLE
Connector,plug,electrical
6150-01-154-13816614 INTERCHANGEABLE
Lead,electrical
893 Mfg, Llc
Cross-Reference Index
Part NumberManufacturer
E26141N-2 PIECE 8 Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
D25656N4 PIECE 8 Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
D25656N2PC4 Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
MILP25732 P/N 5-1022 N304-75 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
E-26141N3PC8M0D Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
25177 PRIMARY Defense Maritime Solutions, Inc. (USA)
6614 Zf Industrieantriebe Witten Gmbh (DEU)
N11 P25732 P/N5 -1022 N304-75 Zf Industrieantriebe Witten Gmbh (DEU)
A25177 Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
Related Parts
5930-00-201-9932INTERCHANGEABLE
SWITCH,TOGGLE
SW-1054-1
5120-00-222-1533INTERCHANGEABLE
HAND SCREW
0
4820-00-243-7419INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
1A33F8-60S
5310-00-559-0922INTERCHANGEABLE
WASHER,FINISHING
507546
3120-00-662-2181INTERCHANGEABLE
BEARING,SLEEVE
5940-00-727-5243INTERCHANGEABLE
TERMINAL,STUD
5365-01-013-5648INTERCHANGEABLE
SHIM
25177
5805-01-063-9490INTERCHANGEABLE
PANEL,TELEPHONE SWITCHBOARD
6614
5935-01-114-8827INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
6150-01-154-1381INTERCHANGEABLE
LEAD,ELECTRICAL
6614
6530-01-171-4018INTERCHANGEABLE
PAD,COOLING,CHEMICAL
4820-01-177-3957INTERCHANGEABLE
HOUSING,PISTON
6614

Frequently Asked Questions

What is NSN 5331-00-892-1944?

NSN 5331-00-892-1944 is a O-Ring, manufactured by Defense Maritime Solutions, Inc., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-892-1944?

NSN 5331-00-892-1944 has 9 cross-referenced part numbers: E26141N-2 PIECE 8 (Eaton Corporation Dba Eaton Inoac Div Eaton), D25656N4 PIECE 8 (Eaton Corporation Dba Eaton Inoac Div Eaton), D25656N2PC4 (Eaton Corporation Dba Eaton Inoac Div Eaton), MILP25732 P/N 5-1022 N304-75 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), E-26141N3PC8M0D (Eaton Corporation Dba Eaton Inoac Div Eaton) and 4 more.

What NSN replaces 5331-00-892-1944?

There are 12 known substitutes for 5331-00-892-1944: 5930-00-201-9932, 5120-00-222-1533, 4820-00-243-7419 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25177?

Key specifications for 25177: Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Center Hole Diameter: 19.938 INCHES MINIMUM AND 19.998 INCHES MAXIMUM IN; Material: RUBBER. 5 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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