PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21295-9Screw,cap,socket Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-934-9729 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-934-9729 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-934-9729. Primary manufacturer part number: MS21295-9.
Features
  • Screw,cap,socket Head — FSC 5305
  • Nondefinitive Spec/std Data: 6 TYPE
  • Thread Quantity Per Inch: 32
  • Head Height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.138 INCHES IN
  • Locking Feature: PATCH THREADS
  • Material: STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OR STEEL COMP XM-7 FASTENER
  • Minimum Yield Strength: 30000 POUNDS PER SQUARE INCH LBS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 or Steel Comp 304 or Steel Comp 305 or Steel Comp 316 or Steel Comp 384 or Steel Comp Xm-7 Fastener construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-934-9729, is classified within Federal Supply Class 5305 (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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-934-9729
Primary Part NumberMS21295-9
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Nondefinitive Spec/std Data6 TYPE
Thread Quantity Per Inch32
Head Height0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
Nominal Thread Diameter0.138 INCHES IN
Locking FeaturePATCH THREADS
MaterialSTEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OR STEEL COMP XM-7 FASTENER
Minimum Yield Strength30000 POUNDS PER SQUARE INCH LBS
MaterialPLASTIC POLYAMIDE NYLON LOCKING FEATURE
Surface Treatment Document and ClassificationSTM A380 ASSN STD SINGLE TREATMENT RESPONSE FASTENER
Hardness Rating80.0 ROCKWELL C MINIMUM FASTENER
Width Across Flats0.141 INCHES MINIMUM AND 0.144 INCHES MAXIMUM IN
Surface TreatmentPASSIVATE FASTENER
Fastener Length0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Minimum Tensile Strength8000 POUNDS PER SQUARE INCH LBS
Thread Class3A A
Internal Drive StyleHEXAGON
Head Diameter0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Head StyleFLAT CHAMFER
Thread DirectionRIGHT-HAND
Thread Length0.235 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
7050-00-420-13608135 INTERCHANGEABLE
Converter,digital to Analog
Analog Devices, Inc. Div Corporate Headquarters
5985-00-773-73118135 INTERCHANGEABLE
Dummy Load,electrical
Bird Electronic Corporation Div Bird Electronic Corp
4730-01-076-32700031120-012 INTERCHANGEABLE
Elbow,pipe
Cleveland Service Center
8415-01-529-88648135 INTERCHANGEABLE
Gloves,men's
Eagle Industries Unlimited, Llc
Cross-Reference Index
Part NumberManufacturer
5305PL0972325 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MS21295-9 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
813-5 PRIMARY Michigan Dynamics Inc (USA)
FF-S-86 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS21295-9 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
7050-00-420-1360INTERCHANGEABLE
CONVERTER,DIGITAL TO ANALOG
8135
5985-00-773-7311INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
8135
4730-01-076-3270INTERCHANGEABLE
ELBOW,PIPE
0031120-012
8415-01-529-8864INTERCHANGEABLE
GLOVES,MEN'S
8135

Frequently Asked Questions

What is NSN 5305-00-934-9729?

NSN 5305-00-934-9729 is a Screw,cap,socket Head, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-934-9729?

NSN 5305-00-934-9729 has 5 cross-referenced part numbers: 5305PL0972325 (Jednolity Indeks Materialowy - Uniform Material Index), MS21295-9 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 813-5 (Michigan Dynamics Inc), FF-S-86 (Federal Specifications Promulgated by General Services Administration Washington DC), MS21295-9 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5305-00-934-9729?

There are 4 known substitutes for 5305-00-934-9729: 7050-00-420-1360, 5985-00-773-7311, 4730-01-076-3270 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21295-9?

Key specifications for MS21295-9: Nondefinitive Spec/std Data: 6 TYPE; Thread Quantity Per Inch: 32; Head Height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.138 INCHES IN. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-934-9729 still in active supply?

NSN 5305-00-934-9729 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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