PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27981-3BSocket,snap Fastener

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5325-00-276-4966 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-276-4966 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-276-4966. Primary manufacturer part number: MS27981-3B.
Features
  • Socket,snap Fastener — FSC 5325
  • Socket Overall Height: 0.156 INCHES NOMINAL IN
  • Opening Diameter: 0.312 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Snap Fastener Socket Style: SOCKET
  • Major Diameter: 0.422 INCHES NOMINAL IN
  • 7 verified cross-references
  • Primary manufacturer: National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Socket,snap Fastener, cataloged under National Stock Number 5325-00-276-4966, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 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
NSN5325-00-276-4966
Primary Part NumberMS27981-3B
Item NameSocket,snap Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Socket Overall Height0.156 INCHES NOMINAL IN
Opening Diameter0.312 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Snap Fastener Socket StyleSOCKET
Major Diameter0.422 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5325-00-174-2889 INTERCHANGEABLE
Socket,snap Fastener
5133-00-189-9250 INTERCHANGEABLE
Drill,twist
5950-00-211-714012205 INTERCHANGEABLE
Transformer,audio Frequency
Standex Electronics, Inc.
5110-00-224-7911PD5110-00-224-7911 INTERCHANGEABLE
Plane,jack
General Services Administration Federal Supply Service
5355-00-566-606612205 INTERCHANGEABLE
Pointer,dial
Aerosonic Llc
5975-00-665-0648 INTERCHANGEABLE
Bushing,electrical Conduit
2805-01-104-658412-205 INTERCHANGEABLE
Block,engine Cylind
Thermo King Corporation Dba Phoenix Global Distirbution.
5950-01-151-251312205 INTERCHANGEABLE
Inductor
Giga-Tronics Incorporated Dba Giga-Tronics
5998-01-160-0003 INTERCHANGEABLE
Circuit Card Assembly
5365-01-254-25280691744 INTERCHANGEABLE
Shim
Mitsubishi Caterpillar Forklift America, Inc
Cross-Reference Index
Part NumberManufacturer
MS27981-3B Aerospace Industries Association of America Inc
5325PL1967443 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MS27981-3B Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS27981-3B PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
10086401 Nimikkeistokeskus Ncb Finland (FIN)
12205 Trw Assemblies and Fasteners Group (USA)
AN227-12B Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5325-00-174-2889INTERCHANGEABLE
SOCKET,SNAP FASTENER
5133-00-189-9250INTERCHANGEABLE
DRILL,TWIST
5950-00-211-7140INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
12205
5110-00-224-7911INTERCHANGEABLE
PLANE,JACK
PD5110-00-224-7911
5355-00-566-6066INTERCHANGEABLE
POINTER,DIAL
12205
5975-00-665-0648INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
2805-01-104-6584INTERCHANGEABLE
BLOCK,ENGINE CYLIND
12-205
5950-01-151-2513INTERCHANGEABLE
INDUCTOR
12205
5998-01-160-0003INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5365-01-254-2528INTERCHANGEABLE
SHIM
0691744
5120-01-335-2102INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
12205
4330-01-440-5642INTERCHANGEABLE
FILTER ELEMENT,FLUID

Frequently Asked Questions

What is NSN 5325-00-276-4966?

NSN 5325-00-276-4966 is a Socket,snap Fastener, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-00-276-4966?

NSN 5325-00-276-4966 has 7 cross-referenced part numbers: MS27981-3B (Aerospace Industries Association of America Inc), 5325PL1967443 (Jednolity Indeks Materialowy - Uniform Material Index), MS27981-3B (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS27981-3B (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 10086401 (Nimikkeistokeskus Ncb Finland) and 2 more.

What NSN replaces 5325-00-276-4966?

There are 12 known substitutes for 5325-00-276-4966: 5325-00-174-2889, 5133-00-189-9250, 5950-00-211-7140 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27981-3B?

Key specifications for MS27981-3B: Socket Overall Height: 0.156 INCHES NOMINAL IN; Opening Diameter: 0.312 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL; Snap Fastener Socket Style: SOCKET. 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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