PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

157269R91Seal,plain Encased

Ace Aviation Service, Inc · NSN 5330-00-551-9334 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-551-9334 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-551-9334. Primary manufacturer part number: 157269R91.
Features
  • Seal,plain Encased — FSC 5330
  • Material: LEATHER SEALING ELEMENT
  • Seal Width: 0.375 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Material: STEEL CASE
  • Sealing Element Style: ANGULAR
  • Accommodated Shaft Diameter: 1.250 INCHES NOMINAL IN
  • Housing Bore Diameter: 1.752 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Leather Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-551-9334, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ace Aviation Service, Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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
NSN5330-00-551-9334
Primary Part Number157269R91
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerAce Aviation Service, Inc
StatusCANCELLED
MaterialLEATHER SEALING ELEMENT
Seal Width0.375 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
MaterialSTEEL CASE
Sealing Element StyleANGULAR
Accommodated Shaft Diameter1.250 INCHES NOMINAL IN
Housing Bore Diameter1.752 INCHES NOMINAL IN
Case StyleSQUARE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-190-6414AD3092 INTERCHANGEABLE
Reactor
Spellman High-Voltage Electronics Corporation Dba Spellman High-Voltage Electronics Corp
5940-00-204-5403602-GP-07 INTERCHANGEABLE
Terminal Board
Regal Beloit America, Inc
3455-00-224-3667B94.19 TABLE 7 6X1/8X1 INTERCHANGEABLE
Cutter,milling,metal Slitting
American National Standards Institute Incorporated Dba American National Standards Institute
5950-00-246-2557SC-B-61153 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5975-00-280-3836 INTERCHANGEABLE
Plate,wall,electrical
5950-00-313-4573 INTERCHANGEABLE
Transformer,power
5935-00-320-7533HBL6027 INTERCHANGEABLE
Backshell,electrical Connector
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5365-00-383-91673BC20-1 INTERCHANGEABLE
Shim
Fwd Seagrave Holdings Lp
3040-00-468-32986027 INTERCHANGEABLE
Shaft,shouldered
Dynalec Corporation
4140-00-468-5342 INTERCHANGEABLE
Impeller,fan,axial
Cross-Reference Index
Part NumberManufacturer
157269R91 PRIMARY Ace Aviation Service, Inc (USA)
263922R91 Navistar International Corporation Dba Navistar (USA)
51083 Federal-Mogul Corp Chassis Products Div (USA)
263922R91 PRIMARY Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
51083 Federal-Mogul Corp Government Sales Dept (USA)
6027 Federal-Mogul Corp Chassis Products Div (USA)
Related Parts
5950-00-190-6414INTERCHANGEABLE
REACTOR
AD3092
5940-00-204-5403INTERCHANGEABLE
TERMINAL BOARD
602-GP-07
3455-00-224-3667INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
B94.19 TABLE 7 6X1/8X1
5950-00-246-2557INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SC-B-61153
5975-00-280-3836INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
5950-00-313-4573INTERCHANGEABLE
TRANSFORMER,POWER
5935-00-320-7533INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
HBL6027
5365-00-383-9167INTERCHANGEABLE
SHIM
3BC20-1
3040-00-468-3298INTERCHANGEABLE
SHAFT,SHOULDERED
6027
4140-00-468-5342INTERCHANGEABLE
IMPELLER,FAN,AXIAL
5340-00-598-0458INTERCHANGEABLE
CLAMP,LOOP
SCB69866
2940-00-825-4394INTERCHANGEABLE
FILTER ELEMENT,FLUID
51083

Frequently Asked Questions

What is NSN 5330-00-551-9334?

NSN 5330-00-551-9334 is a Seal,plain Encased, manufactured by Ace Aviation Service, Inc, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-551-9334?

NSN 5330-00-551-9334 has 6 cross-referenced part numbers: 157269R91 (Ace Aviation Service, Inc), 263922R91 (Navistar International Corporation Dba Navistar), 51083 (Federal-Mogul Corp Chassis Products Div), 263922R91 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 51083 (Federal-Mogul Corp Government Sales Dept) and 1 more.

What NSN replaces 5330-00-551-9334?

There are 12 known substitutes for 5330-00-551-9334: 5950-00-190-6414, 5940-00-204-5403, 3455-00-224-3667 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 157269R91?

Key specifications for 157269R91: Material: LEATHER SEALING ELEMENT; Seal Width: 0.375 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT; Material: STEEL CASE. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-551-9334 still in active supply?

NSN 5330-00-551-9334 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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