PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1003948Screw,cap,hexagon Head

Hdt Expeditionary Systems Inc · NSN 5305-01-581-3646 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-581-3646 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-581-3646. Primary manufacturer part number: 1003948.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Series Designator: M
  • Supplementary Features: NHA: ENGINE/GENERATOR TG421-9003
  • Fastener Length: 25.0 MILLIMETERS NOMINAL MM
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Diameter: 8.0 MILLIMETERS MM
  • 3 verified cross-references
  • Primary manufacturer: Hdt Expeditionary Systems Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-581-3646, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hdt Expeditionary Systems Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-581-3646
Primary Part Number1003948
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
Thread Series DesignatorM
Supplementary FeaturesNHA: ENGINE/GENERATOR TG421-9003
Fastener Length25.0 MILLIMETERS NOMINAL MM
Thread DirectionRIGHT-HAND
Nominal Thread Diameter8.0 MILLIMETERS MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6680-00-225-858404283 INTERCHANGEABLE
Indicator,sight,liquid
Gits Mfg Co Inc
Cross-Reference Index
Part NumberManufacturer
1003948 Dhs Systems Llc (USA)
1003948 PRIMARY Hdt Expeditionary Systems Inc (USA)
04283 Mack Boring & Parts Co (USA)
Related Parts
6680-00-225-8584INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
04283

Frequently Asked Questions

What is NSN 5305-01-581-3646?

NSN 5305-01-581-3646 is a Screw,cap,hexagon Head, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-581-3646?

NSN 5305-01-581-3646 has 3 cross-referenced part numbers: 1003948 (Dhs Systems Llc), 1003948 (Hdt Expeditionary Systems Inc), 04283 (Mack Boring & Parts Co).

What NSN replaces 5305-01-581-3646?

There is 1 known substitute for 5305-01-581-3646: 6680-00-225-8584. Verify interchangeability with system specifications before substitution.

What are the specifications of 1003948?

Key specifications for 1003948: Thread Series Designator: M; End Item Identification: 6115-01-572-3944, POWER PLANT,UTILITY; Supplementary Features: NHA: ENGINE/GENERATOR TG421-9003; Fastener Length: 25.0 MILLIMETERS NOMINAL MM. 6 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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