PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SK56Y21-92-1 SIZE C-125Spacer,plate

Naval Sea Systems Command · NSN 5365-01-357-1763 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-357-1763 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-357-1763. Primary manufacturer part number: SK56Y21-92-1 SIZE C-125.
Features
  • Spacer,plate — FSC 5365
  • 4 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Spacer,plate, cataloged under National Stock Number 5365-01-357-1763, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. 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
NSN5365-01-357-1763
Primary Part NumberSK56Y21-92-1 SIZE C-125
Item NameSpacer,plate
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-151-5051 INTERCHANGEABLE
Bearing,sleeve
3040-00-194-2389C7341S3 INTERCHANGEABLE
Collar,shaft
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
6105-00-312-3109 INTERCHANGEABLE
Winding,motor Field
5325-00-616-47902600 SERIES CUP INTERCHANGEABLE
Post,snap Fastener
Howmet Global Fastening Systems Inc Div Camloc Products
5355-00-917-7885C025-1 INTERCHANGEABLE
Knob
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
5940-01-032-8466C125 INTERCHANGEABLE
Terminal Board
Bulgin Components Plc
5210-01-139-74445210-01-139-7444 INTERCHANGEABLE
Tape,measuring
General Services Administration Federal Supply Service
4820-01-143-4311C125 INTERCHANGEABLE
Valve,check
Humphrey Products Co
6625-01-469-6401C125 INTERCHANGEABLE
Case,electrical-Electronic Test
Fluke Corp
5365-01-515-10022HA918 INTERCHANGEABLE
Spacer,ring
Oshkosh Defense Llc
Cross-Reference Index
Part NumberManufacturer
C-125 International Mechanical Shim Corp Dba San Diego Shim and Algnmt Co (USA)
922962 Mars Technologies Inc Dba American Metals Company (USA)
0C12520 Igs Industries Inc (USA)
SK56Y21-92-1 SIZE C-125 PRIMARY Naval Sea Systems Command (USA)
Related Parts
3120-00-151-5051INTERCHANGEABLE
BEARING,SLEEVE
3040-00-194-2389INTERCHANGEABLE
COLLAR,SHAFT
C7341S3
6105-00-312-3109INTERCHANGEABLE
WINDING,MOTOR FIELD
5325-00-616-4790INTERCHANGEABLE
POST,SNAP FASTENER
2600 SERIES CUP
5355-00-917-7885INTERCHANGEABLE
KNOB
C025-1
5940-01-032-8466INTERCHANGEABLE
TERMINAL BOARD
C125
5210-01-139-7444INTERCHANGEABLE
TAPE,MEASURING
5210-01-139-7444
4820-01-143-4311INTERCHANGEABLE
VALVE,CHECK
C125
6625-01-469-6401INTERCHANGEABLE
CASE,ELECTRICAL-ELECTRONIC TEST
C125
5365-01-515-1002INTERCHANGEABLE
SPACER,RING
2HA918
4910-01-678-1269INTERCHANGEABLE
ANALYZER,GASOLINE ENGINE EXHAUST
C125
5365-01-680-2654INTERCHANGEABLE
SHIM

Frequently Asked Questions

What is NSN 5365-01-357-1763?

NSN 5365-01-357-1763 is a Spacer,plate, manufactured by Naval Sea Systems Command, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-357-1763?

NSN 5365-01-357-1763 has 4 cross-referenced part numbers: C-125 (International Mechanical Shim Corp Dba San Diego Shim and Algnmt Co), 922962 (Mars Technologies Inc Dba American Metals Company), 0C12520 (Igs Industries Inc), SK56Y21-92-1 SIZE C-125 (Naval Sea Systems Command).

What NSN replaces 5365-01-357-1763?

There are 12 known substitutes for 5365-01-357-1763: 3120-00-151-5051, 3040-00-194-2389, 6105-00-312-3109 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SK56Y21-92-1 SIZE C-125?

Key specifications for SK56Y21-92-1 SIZE C-125: Overall Length: 4.688 INCHES NOMINAL IN; Overall Width: 4.000 INCHES NOMINAL IN. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com