PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

73704Screw,machine

Prestolite Electric Inc · NSN 5305-00-338-5603 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-338-5603 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-338-5603. Primary manufacturer part number: 73704.
Features
  • Screw,machine — FSC 5305
  • Thread Class: 2A A
  • Internal Drive Style: CROSS RECESS TYPE 1
  • Thread Direction: RIGHT-HAND
  • Screw Surface Treatment: CADMIUM AND CHROMATE
  • Extended Washer Thickness: 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
  • Head Style: HEXAGON EXTENDED WASHER
  • Extended Washer Diameter: 0.384 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-338-5603, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Prestolite Electric Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-338-5603
Primary Part Number73704
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerPrestolite Electric Inc
StatusCANCELLED
Thread Class2A A
Internal Drive StyleCROSS RECESS TYPE 1
Thread DirectionRIGHT-HAND
Screw Surface TreatmentCADMIUM AND CHROMATE
Extended Washer Thickness0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
Head StyleHEXAGON EXTENDED WASHER
Extended Washer Diameter0.384 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN
Screw Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES
Screw MaterialSTEEL
Thread Quantity Per Inch32
Nominal Thread Diameter0.190 INCHES IN
Head Height0.136 INCHES MINIMUM AND 0.139 INCHES MAXIMUM IN
Thread Length0.422 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
Screw Material Document and ClassificationSAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE
Width Between Flats0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Fastener Length0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
6115-00-166-972373704 INTERCHANGEABLE
Armature,generator
Honeywell Intl Inc Defense Avionics Systems
5365-01-169-545673704 INTERCHANGEABLE
Spacer
Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
6145-01-218-83737370-4 INTERCHANGEABLE
Cable,power,electrical
Birnbach Co Inc
5310-01-271-949873704 INTERCHANGEABLE
Washer,lock
Api Heat Transfer Thermasys Corporation
5950-01-311-080073704 INTERCHANGEABLE
Transformer,power
Inrcore, Llc Div Inrcore
4330-01-318-36607370400 INTERCHANGEABLE
Disk,purifier
Alfa Laval Inc
Cross-Reference Index
Part NumberManufacturer
73704 PRIMARY Prestolite Electric Inc (USA)
73704 Prestolite Electric Inc (USA)
Z104073704 Prestolite Electric Inc (USA)
Related Parts
6115-00-166-9723INTERCHANGEABLE
ARMATURE,GENERATOR
73704
5365-01-169-5456INTERCHANGEABLE
SPACER
73704
6145-01-218-8373INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
7370-4
5310-01-271-9498INTERCHANGEABLE
WASHER,LOCK
73704
5950-01-311-0800INTERCHANGEABLE
TRANSFORMER,POWER
73704
4330-01-318-3660INTERCHANGEABLE
DISK,PURIFIER
7370400

Frequently Asked Questions

What is NSN 5305-00-338-5603?

NSN 5305-00-338-5603 is a Screw,machine, manufactured by Prestolite Electric Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-338-5603?

NSN 5305-00-338-5603 has 3 cross-referenced part numbers: 73704 (Prestolite Electric Inc), 73704 (Prestolite Electric Inc), Z104073704 (Prestolite Electric Inc).

What NSN replaces 5305-00-338-5603?

There are 6 known substitutes for 5305-00-338-5603: 6115-00-166-9723, 5365-01-169-5456, 6145-01-218-8373 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 73704?

Key specifications for 73704: Thread Class: 2A A; Internal Drive Style: CROSS RECESS TYPE 1; Thread Direction: RIGHT-HAND; Screw Surface Treatment: CADMIUM AND CHROMATE. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-338-5603 still in active supply?

NSN 5305-00-338-5603 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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