PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12637Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-01-073-3684 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-073-3684 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-073-3684. Primary manufacturer part number: 12637.
Features
  • Seal,plain Encased — FSC 5330
  • Outside Diameter: 2.506 INCHES NOMINAL IN
  • Accommodated Shaft Diameter: 1.250 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Seal Width: 0.313 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Housing Bore Diameter: 2.502 INCHES NOMINAL IN
  • Temp Rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-073-3684, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Skf Usa Inc. Dba Skf Aerospace Sealing Solutions. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-073-3684
Primary Part Number12637
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Outside Diameter2.506 INCHES NOMINAL IN
Accommodated Shaft Diameter1.250 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Seal Width0.313 INCHES NOMINAL IN
Case StyleSQUARE
Housing Bore Diameter2.502 INCHES NOMINAL IN
Temp Rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
Surface TreatmentPLASTIC CASE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4720-00-060-8186R3806CC4-0400 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division
2910-00-787-642833627 INTERCHANGEABLE
Screw Cam Ring Advance
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
4720-00-874-592465-19917-2 INTERCHANGEABLE
Hose Assembly,nonmetallic
The Boeing Company Div Defense
4710-01-264-938512637 INTERCHANGEABLE
Tube,metallic
Westerbeke Corporation
Cross-Reference Index
Part NumberManufacturer
12637 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
4720-00-060-8186INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
R3806CC4-0400
2910-00-787-6428INTERCHANGEABLE
SCREW CAM RING ADVANCE
33627
4720-00-874-5924INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
65-19917-2
4710-01-264-9385INTERCHANGEABLE
TUBE,METALLIC
12637

Frequently Asked Questions

What is NSN 5330-01-073-3684?

NSN 5330-01-073-3684 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-073-3684?

NSN 5330-01-073-3684 has 1 cross-referenced part number: 12637 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-01-073-3684?

There are 4 known substitutes for 5330-01-073-3684: 4720-00-060-8186, 2910-00-787-6428, 4720-00-874-5924 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12637?

Key specifications for 12637: Outside Diameter: 2.506 INCHES NOMINAL IN; Accommodated Shaft Diameter: 1.250 INCHES NOMINAL IN; Sealing Element Style: ANGULAR; Seal Width: 0.313 INCHES NOMINAL IN. 10 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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