PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DIN912M6X40-8.8B4NScrew,cap,socket Head

Bossard Intl Inc · NSN 5305-01-437-6344 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-437-6344 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-437-6344. Primary manufacturer part number: DIN912M6X40-8.8B4N.
Features
  • Screw,cap,socket Head — FSC 5305
  • External Thread Tolerance Class: 6G G
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • Thread Series Designator: M
  • Fastener Length: 40.0 MILLIMETERS NOMINAL MM
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Diameter: 6.0 MILLIMETERS MM
  • Head Style: FLAT FILLISTER
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Property Class 12.9 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-437-6344, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bossard Intl Inc. Government technical data includes 14 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-437-6344
Primary Part NumberDIN912M6X40-8.8B4N
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerBossard Intl Inc
StatusACTIVE
External Thread Tolerance Class6G G
Surface TreatmentCADMIUM OR ZINC OVERALL
Thread Series DesignatorM
Fastener Length40.0 MILLIMETERS NOMINAL MM
Thread DirectionRIGHT-HAND
Nominal Thread Diameter6.0 MILLIMETERS MM
Head StyleFLAT FILLISTER
Thread Pitch in Millimeters1.0
Thread Length24.0 MILLIMETERS NOMINAL MM
Head Height6.0 MILLIMETERS NOMINAL MM
Head Diameter12.5 MILLIMETERS NOMINAL MM
Width Across Flats5.0 MILLIMETERS NOMINAL MM
MaterialSTEEL PROPERTY CLASS 12.9 OVERALL
Internal Drive StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5120-00-034-76325120-00-034-7632 INTERCHANGEABLE
Spacer,mechanical Puller
General Services Administration Federal Supply Service
6135-00-120-1004 INTERCHANGEABLE
Battery,nonrechargeable
5330-00-285-4028 INTERCHANGEABLE
Seal,plain Encased
3030-00-294-9869 INTERCHANGEABLE
Belt,v
6145-00-360-776013220E3406 INTERCHANGEABLE
Wire,magnet
Cecom Lr Center
5985-00-768-40698053A INTERCHANGEABLE
Dummy Load,electrical
Bird Electronic Corporation Div Bird Electronic Corp
5330-00-818-05247748764 INTERCHANGEABLE
Seal,plain
Army, United States Department of the Dba Rock Island Arsenal Jmtc
5910-01-019-3858SM-B-781408 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6625-01-039-5349 INTERCHANGEABLE
Hybrid Junction
5340-01-446-53657657-2-2 ITEM 8 INTERCHANGEABLE
Retainer,helical Compression Spr
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
Cross-Reference Index
Part NumberManufacturer
8053 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
8053 Eaton Aviation Corporation (USA)
912.8.8ZP Maryland Metrics (USA)
DIN912M6X40-8.8B4N PRIMARY Bossard Intl Inc (USA)
Related Parts
5120-00-034-7632INTERCHANGEABLE
SPACER,MECHANICAL PULLER
5120-00-034-7632
6135-00-120-1004INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
5330-00-285-4028INTERCHANGEABLE
SEAL,PLAIN ENCASED
3030-00-294-9869INTERCHANGEABLE
BELT,V
6145-00-360-7760INTERCHANGEABLE
WIRE,MAGNET
13220E3406
5985-00-768-4069INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
8053A
5330-00-818-0524INTERCHANGEABLE
SEAL,PLAIN
7748764
5910-01-019-3858INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
SM-B-781408
6625-01-039-5349INTERCHANGEABLE
HYBRID JUNCTION
5340-01-446-5365INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
7657-2-2 ITEM 8
6110-01-581-3590INTERCHANGEABLE
PANEL,CONTROL,ELECTRICAL-ELECTRO

Frequently Asked Questions

What is NSN 5305-01-437-6344?

NSN 5305-01-437-6344 is a Screw,cap,socket Head, manufactured by Bossard Intl Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-437-6344?

NSN 5305-01-437-6344 has 4 cross-referenced part numbers: 8053 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution), 8053 (Eaton Aviation Corporation), 912.8.8ZP (Maryland Metrics), DIN912M6X40-8.8B4N (Bossard Intl Inc).

What NSN replaces 5305-01-437-6344?

There are 11 known substitutes for 5305-01-437-6344: 5120-00-034-7632, 6135-00-120-1004, 5330-00-285-4028 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of DIN912M6X40-8.8B4N?

Key specifications for DIN912M6X40-8.8B4N: External Thread Tolerance Class: 6G G; Surface Treatment: CADMIUM OR ZINC OVERALL; Thread Series Designator: M; Fastener Length: 40.0 MILLIMETERS NOMINAL MM. 14 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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