PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31148Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-690-9372 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-690-9372 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-690-9372. Primary manufacturer part number: 31148.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 4.006 INCHES MINIMUM AND 4.010 INCHES MAXIMUM IN
  • Surface Treatment: PLASTIC CASE
  • Material: RUBBER SEALING ELEMENT
  • Material: STEEL CASE
  • Case Style: SQUARE
  • Temp Rating: -60.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
  • Sealing Element Style: ANGULAR
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-690-9372, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-690-9372
Primary Part Number31148
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Housing Bore Diameter4.006 INCHES MINIMUM AND 4.010 INCHES MAXIMUM IN
Surface TreatmentPLASTIC CASE
MaterialRUBBER SEALING ELEMENT
MaterialSTEEL CASE
Case StyleSQUARE
Temp Rating-60.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
Sealing Element StyleANGULAR
Seal Width0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN
Outside Diameter4.008 INCHES NOMINAL IN
Accommodated Shaft Diameter3.122 INCHES MINIMUM AND 3.128 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-147-894631148 INTERCHANGEABLE
Bearing,turbine Pump
Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture
6515-01-290-5447311.48 INTERCHANGEABLE
Tap,bone Screw
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
31148 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
VL7909 American Standard Inc Westinghouse Air Brake Co Div (USA)
Related Parts
3110-00-147-8946INTERCHANGEABLE
BEARING,TURBINE PUMP
31148
6515-01-290-5447INTERCHANGEABLE
TAP,BONE SCREW
311.48

Frequently Asked Questions

What is NSN 5330-00-690-9372?

NSN 5330-00-690-9372 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 5330-00-690-9372?

NSN 5330-00-690-9372 has 2 cross-referenced part numbers: 31148 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), VL7909 (American Standard Inc Westinghouse Air Brake Co Div).

What NSN replaces 5330-00-690-9372?

There are 2 known substitutes for 5330-00-690-9372: 3110-00-147-8946, 6515-01-290-5447. Verify interchangeability with system specifications before substitution.

What are the specifications of 31148?

Key specifications for 31148: Housing Bore Diameter: 4.006 INCHES MINIMUM AND 4.010 INCHES MAXIMUM IN; Surface Treatment: PLASTIC CASE; Material: RUBBER SEALING ELEMENT; Material: STEEL CASE. 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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