PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A12O-Ring

Stillman Seal Corporation Div Stillman Seal Corperation · NSN 5331-00-913-2663 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-913-2663 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-913-2663. Primary manufacturer part number: A12.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Center Hole Diameter: 0.357 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
  • Material Document and Classification: MIL-R-25897,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE
  • 23 verified cross-references
  • Primary manufacturer: Stillman Seal Corporation Div Stillman Seal Corperation
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-913-2663, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Stillman Seal Corporation Div Stillman Seal Corperation. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 23 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-913-2663
Primary Part NumberA12
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerStillman Seal Corporation Div Stillman Seal Corperation
StatusCANCELLED
MaterialRUBBER FLUOROCARBON CLASS FPM
Hardness Rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Center Hole Diameter0.357 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN
Material Document and ClassificationMIL-R-25897,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
2520-00-116-6739 INTERCHANGEABLE
Retainer,plate
5331-00-166-0980AS3209-012 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-169-09532-012 V747-75 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
1220-00-382-5945655281 INTERCHANGEABLE
Elbow
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2945-00-396-4199206849 INTERCHANGEABLE
Filter Element,fluid
Canadian Commercial Corporation
5330-00-762-655821506-0013 INTERCHANGEABLE
Seal,special
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5331-00-957-13802-012 V747-75 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5330-01-263-3758206849 INTERCHANGEABLE
Gasket
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
Cross-Reference Index
Part NumberManufacturer
A12 PRIMARY Stillman Seal Corporation Div Stillman Seal Corperation (USA)
S8057BF7 Alliedsignal Inc Dba Allied-Signal Aerospace Co (USA)
3627-7-11-70 PRIMARY Hamilton Sundstrand Corporation (USA)
S2000-012R PRIMARY Hydro-Aire Aerospace Corp (USA)
16606A41-7 PRIMARY Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA)
2-12 77-545 Parker-Hannifin Corp Div O-Ring Division (USA)
S8057BF7 Honeywell International Inc. Div Aerospace - Torrance (USA)
5330009132663 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
2-012 V747-75 Parker-Hannifin Corp Div O-Ring Division (USA)
757075-012 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
EAB728-12 PRIMARY Us Army Aviation and Missile Command (USA)
S8057BF7 PRIMARY Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
2048430-2 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
NAS1593-012 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
PRP902-7-829-70 PRIMARY Parker Hannifin Corporation Div O-Ring Division (USA)
4619301048 Zf Friedrichshafen Ag (DEU)
NAS1593-012ES Eriks B.v. (NLD)
2-012 V747-75 Parker Hannifin Gmbh O-Ring Division (DEU)
206849 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
V0747 2-012 PRIMARY Parker-Hannifin Corp Div O-Ring Division (USA)
Related Parts
2520-00-116-6739INTERCHANGEABLE
RETAINER,PLATE
5331-00-166-0980INTERCHANGEABLE
O-RING
AS3209-012
5331-00-169-0953INTERCHANGEABLE
O-RING
2-012 V747-75
1220-00-382-5945INTERCHANGEABLE
ELBOW
655281
2945-00-396-4199INTERCHANGEABLE
FILTER ELEMENT,FLUID
206849
5330-00-762-6558INTERCHANGEABLE
SEAL,SPECIAL
21506-0013
5331-00-957-1380INTERCHANGEABLE
O-RING
2-012 V747-75
5330-01-263-3758INTERCHANGEABLE
GASKET
206849

Frequently Asked Questions

What is NSN 5331-00-913-2663?

NSN 5331-00-913-2663 is a O-Ring, manufactured by Stillman Seal Corporation Div Stillman Seal Corperation, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-913-2663?

NSN 5331-00-913-2663 has 23 cross-referenced part numbers: A12 (Stillman Seal Corporation Div Stillman Seal Corperation), S8057BF7 (Alliedsignal Inc Dba Allied-Signal Aerospace Co), 3627-7-11-70 (Hamilton Sundstrand Corporation), S2000-012R (Hydro-Aire Aerospace Corp), 16606A41-7 (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S) and 18 more.

What NSN replaces 5331-00-913-2663?

There are 8 known substitutes for 5331-00-913-2663: 2520-00-116-6739, 5331-00-166-0980, 5331-00-169-0953 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A12?

Key specifications for A12: Material: RUBBER FLUOROCARBON CLASS FPM; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 0.357 INCHES MINIMUM AND 0.371 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-913-2663 still in active supply?

NSN 5331-00-913-2663 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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