PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4956Retainer,packing

Lear Siegler Inc Sherwood Div · NSN 5330-00-218-2693 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-218-2693 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-218-2693. Primary manufacturer part number: 4956.
Features
  • Retainer,packing — FSC 5330
  • Peripheral Diameter: 1.375 INCHES NOMINAL IN
  • Cross-Sectional Height: 0.187 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: SQUARE/RECTANGULAR
  • Center Hole Diameter: 1.000 INCHES NOMINAL IN
  • Material: NICKEL ALLOY OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Lear Siegler Inc Sherwood Div
Applications
  • Applications requiring Nickel Alloy Overall construction
General Description

The Retainer,packing, cataloged under National Stock Number 5330-00-218-2693, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lear Siegler Inc Sherwood Div. Government technical data includes 5 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
NSN5330-00-218-2693
Primary Part Number4956
Item NameRetainer,packing
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerLear Siegler Inc Sherwood Div
StatusACTIVE
Peripheral Diameter1.375 INCHES NOMINAL IN
Cross-Sectional Height0.187 INCHES NOMINAL IN
Cross-Sectional Shape StyleSQUARE/RECTANGULAR
Center Hole Diameter1.000 INCHES NOMINAL IN
MaterialNICKEL ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2520-00-463-62884956 INTERCHANGEABLE
Hub,drive Shaft,clu
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5330-01-038-10894950 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5825-01-445-7965 INTERCHANGEABLE
Shaft,output
5985-01-514-03604956 INTERCHANGEABLE
Isolator,radio Frequency Reflect
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
Cross-Reference Index
Part NumberManufacturer
4956 Lear Siegler Inc Sherwood Div (USA)
Related Parts
2520-00-463-6288INTERCHANGEABLE
HUB,DRIVE SHAFT,CLU
4956
5330-01-038-1089INTERCHANGEABLE
SEAL,PLAIN ENCASED
4950
5825-01-445-7965INTERCHANGEABLE
SHAFT,OUTPUT
5985-01-514-0360INTERCHANGEABLE
ISOLATOR,RADIO FREQUENCY REFLECT
4956

Frequently Asked Questions

What is NSN 5330-00-218-2693?

NSN 5330-00-218-2693 is a Retainer,packing, manufactured by Lear Siegler Inc Sherwood Div, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-218-2693?

NSN 5330-00-218-2693 has 1 cross-referenced part number: 4956 (Lear Siegler Inc Sherwood Div).

What NSN replaces 5330-00-218-2693?

There are 4 known substitutes for 5330-00-218-2693: 2520-00-463-6288, 5330-01-038-1089, 5825-01-445-7965 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4956?

Key specifications for 4956: Peripheral Diameter: 1.375 INCHES NOMINAL IN; Cross-Sectional Height: 0.187 INCHES NOMINAL IN; Cross-Sectional Shape Style: SQUARE/RECTANGULAR; Center Hole Diameter: 1.000 INCHES NOMINAL IN. 5 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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