PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12391Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-171-9096 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-171-9096 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-171-9096. Primary manufacturer part number: 12391.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.250 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Sealing Element Style: ANGULAR
  • Material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
  • Outside Diameter: 1.942 INCHES NOMINAL IN
  • Housing Bore Diameter: 1.935 INCHES MINIMUM AND 1.937 INCHES MAXIMUM IN
  • Surface Treatment: PLASTIC CASE
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Leather or Rubber Synthetic Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-171-9096, 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 9 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-171-9096
Primary Part Number12391
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusCANCELLED
Seal Width0.250 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Sealing Element StyleANGULAR
MaterialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
Outside Diameter1.942 INCHES NOMINAL IN
Housing Bore Diameter1.935 INCHES MINIMUM AND 1.937 INCHES MAXIMUM IN
Surface TreatmentPLASTIC CASE
Accommodated Shaft Diameter1.250 INCHES NOMINAL IN
Case StyleSQUARE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2840-00-015-1664500289 INTERCHANGEABLE
Bracket,ignition Exciter
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5360-00-335-933412391 INTERCHANGEABLE
Spring,helical,compression
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
3530-00-359-802512391 INTERCHANGEABLE
Presser Bar
Singer Industrial Sewing Products Co Cutters Exchange Div
6625-01-092-119712391 INTERCHANGEABLE
Multimeter
Simpson Electric Company, Inc.
5920-01-210-7106 INTERCHANGEABLE
Absorber,overvoltage
6660-01-218-8091500289 INTERCHANGEABLE
Connector,mast
Aimtron Systems, Llc
5330-01-344-7254 INTERCHANGEABLE
Packing,preformed
5305-01-437-132712391 INTERCHANGEABLE
Setscrew
Leslie Controls, Inc. Dba Leslie Controls Inc
4140-01-498-6292 INTERCHANGEABLE
Housing,centrifugal Fan
5325-01-551-3388 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
12391 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
500289 Army Weapons Command Attn Amswe-Ree-S (USA)
Related Parts
2840-00-015-1664INTERCHANGEABLE
BRACKET,IGNITION EXCITER
500289
5360-00-335-9334INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
12391
3530-00-359-8025INTERCHANGEABLE
PRESSER BAR
12391
6625-01-092-1197INTERCHANGEABLE
MULTIMETER
12391
5920-01-210-7106INTERCHANGEABLE
ABSORBER,OVERVOLTAGE
6660-01-218-8091INTERCHANGEABLE
CONNECTOR,MAST
500289
5330-01-344-7254INTERCHANGEABLE
PACKING,PREFORMED
5305-01-437-1327INTERCHANGEABLE
SETSCREW
12391
4140-01-498-6292INTERCHANGEABLE
HOUSING,CENTRIFUGAL FAN
5325-01-551-3388INTERCHANGEABLE
RING,RETAINING
6525-01-575-0742INTERCHANGEABLE
BLOCKS,BEZEL,COMPUTED RADIOGRAPH
100-0974-01
2530-01-679-2187INTERCHANGEABLE
BRAKE DRUM
12391

Frequently Asked Questions

What is NSN 5330-00-171-9096?

NSN 5330-00-171-9096 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-171-9096?

NSN 5330-00-171-9096 has 2 cross-referenced part numbers: 12391 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 500289 (Army Weapons Command Attn Amswe-Ree-S).

What NSN replaces 5330-00-171-9096?

There are 12 known substitutes for 5330-00-171-9096: 2840-00-015-1664, 5360-00-335-9334, 3530-00-359-8025 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12391?

Key specifications for 12391: Seal Width: 0.250 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT; Sealing Element Style: ANGULAR; Material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-171-9096 still in active supply?

NSN 5330-00-171-9096 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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