PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3125Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-164-8691 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-164-8691 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-164-8691. Primary manufacturer part number: 3125.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Diameter: 0.312 INCHES NOMINAL IN
  • Housing Bore Diameter: 0.748 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
  • Sealing Element Style: ANGULAR
  • Seal Width: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
  • Material: STEEL CASE
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Accommodated Shaft Maximum Rated Speed: 1000 FEET PER MINUTE FT
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Case construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-164-8691, 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 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-164-8691
Primary Part Number3125
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Accommodated Shaft Diameter0.312 INCHES NOMINAL IN
Housing Bore Diameter0.748 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Sealing Element StyleANGULAR
Seal Width0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
MaterialSTEEL CASE
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Accommodated Shaft Maximum Rated Speed1000 FEET PER MINUTE FT
Temp Rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
Case StyleRECESSED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2920-00-134-7716956-4704 INTERCHANGEABLE
Switch,lock,ignition
Cole Hersee Company
2915-00-219-252520093 INTERCHANGEABLE
Pump Assembly,special
Hydro-Aire Aerospace Corp
5905-00-295-3403 INTERCHANGEABLE
Resistor,fixed,composition
5820-00-315-35322009-3 INTERCHANGEABLE
Cover,electronic Communication E
Drs Signal Solutions, Inc.
6750-00-322-93093126 INTERCHANGEABLE
Plate,photographic
Horizons Incorporated Div Imaging Systems Group
5360-00-535-3215 INTERCHANGEABLE
Spring,shaft Seal
5840-00-697-171920093 INTERCHANGEABLE
Indicator and Tripo
Raytheon Company Dba Raytheon
5310-00-877-5797MS21044N3 INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5905-01-016-1015345496 INTERCHANGEABLE
Resistor Set,matched
Fluke Corp
6930-01-042-66123125 INTERCHANGEABLE
Indicator,special
Lilbern Design of Virginia Llc
Cross-Reference Index
Part NumberManufacturer
20093 Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
5330001648691 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
3125 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
2920-00-134-7716INTERCHANGEABLE
SWITCH,LOCK,IGNITION
956-4704
2915-00-219-2525INTERCHANGEABLE
PUMP ASSEMBLY,SPECIAL
20093
5905-00-295-3403INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5820-00-315-3532INTERCHANGEABLE
COVER,ELECTRONIC COMMUNICATION E
2009-3
6750-00-322-9309INTERCHANGEABLE
PLATE,PHOTOGRAPHIC
3126
5360-00-535-3215INTERCHANGEABLE
SPRING,SHAFT SEAL
5840-00-697-1719INTERCHANGEABLE
INDICATOR AND TRIPO
20093
5310-00-877-5797INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS21044N3
5905-01-016-1015INTERCHANGEABLE
RESISTOR SET,MATCHED
345496
6930-01-042-6612INTERCHANGEABLE
INDICATOR,SPECIAL
3125
5998-01-094-3143INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
20093
2920-01-116-6019INTERCHANGEABLE
CAP,IGNITION DISTRIBUTION
IGB1001B

Frequently Asked Questions

What is NSN 5330-00-164-8691?

NSN 5330-00-164-8691 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 5330-00-164-8691?

NSN 5330-00-164-8691 has 4 cross-referenced part numbers: 20093 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 5330001648691 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 3125 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-00-164-8691?

There are 12 known substitutes for 5330-00-164-8691: 2920-00-134-7716, 2915-00-219-2525, 5905-00-295-3403 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3125?

Key specifications for 3125: Accommodated Shaft Diameter: 0.312 INCHES NOMINAL IN; Housing Bore Diameter: 0.748 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Sealing Element Style: ANGULAR; Seal Width: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM 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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