PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

13856PC7O-Ring

Mark Controls Corp Pacific Valves Div · NSN 5331-01-180-8971 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-180-8971 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-180-8971. Primary manufacturer part number: 13856PC7.
Features
  • O-Ring — FSC 5331
  • Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Elongation Percentage: 125 MAXIMUM
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • 3 verified cross-references
  • Primary manufacturer: Mark Controls Corp Pacific Valves Div
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-180-8971, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Mark Controls Corp Pacific Valves Div. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5331-01-180-8971
Primary Part Number13856PC7
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMark Controls Corp Pacific Valves Div
StatusACTIVE
Temp Rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Elongation Percentage125 MAXIMUM
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-080-8282 INTERCHANGEABLE
Packing,preformed
5330-00-352-73661F9612 INTERCHANGEABLE
Gasket
Caterpillar Inc Div Caterpillar Defense
5950-00-353-956416WA03242 INTERCHANGEABLE
Coil,electrical
Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)
5315-00-444-7940NAS1407N7M4 INTERCHANGEABLE
Pin,spring
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4810-00-511-122718207 INTERCHANGEABLE
Sleeve and Slide,directional Con
Parker-Hannifin Corporation Dba Control Systems Division
5331-00-551-9116155-685 INTERCHANGEABLE
O-Ring
Graco Inc.
5330-00-580-5830 INTERCHANGEABLE
Packing,preformed
5331-00-640-9613012-711-70 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div O-Ring Division
5365-00-641-79415B5980 INTERCHANGEABLE
Spacer,ring
Caterpillar Inc Div Caterpillar Defense
5360-00-690-381118207 INTERCHANGEABLE
Spring,helical,compression
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
Cross-Reference Index
Part NumberManufacturer
13856PC7 Mark Controls Corp Pacific Valves Div (USA)
1820-7 Strohmeyer, Julie a. Dba Julie a. Strohmeyer (USA)
AN6227B7 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5330-00-080-8282INTERCHANGEABLE
PACKING,PREFORMED
5330-00-352-7366INTERCHANGEABLE
GASKET
1F9612
5950-00-353-9564INTERCHANGEABLE
COIL,ELECTRICAL
16WA03242
5315-00-444-7940INTERCHANGEABLE
PIN,SPRING
NAS1407N7M4
4810-00-511-1227INTERCHANGEABLE
SLEEVE AND SLIDE,DIRECTIONAL CON
18207
5331-00-551-9116INTERCHANGEABLE
O-RING
155-685
5330-00-580-5830INTERCHANGEABLE
PACKING,PREFORMED
5331-00-640-9613INTERCHANGEABLE
O-RING
012-711-70
5365-00-641-7941INTERCHANGEABLE
SPACER,RING
5B5980
5360-00-690-3811INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
18207
5305-00-959-2716INTERCHANGEABLE
SCREW,MACHINE
MS35190-216
4330-01-579-4902INTERCHANGEABLE
PLUG,FILTER
18207

Frequently Asked Questions

What is NSN 5331-01-180-8971?

NSN 5331-01-180-8971 is a O-Ring, manufactured by Mark Controls Corp Pacific Valves Div, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-180-8971?

NSN 5331-01-180-8971 has 3 cross-referenced part numbers: 13856PC7 (Mark Controls Corp Pacific Valves Div), 1820-7 (Strohmeyer, Julie a. Dba Julie a. Strohmeyer), AN6227B7 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5331-01-180-8971?

There are 12 known substitutes for 5331-01-180-8971: 5330-00-080-8282, 5330-00-352-7366, 5950-00-353-9564 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 13856PC7?

Key specifications for 13856PC7: Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Special Features: PACKING O-RING HYDRAULIC; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Elongation Percentage: 125 MAXIMUM. 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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