PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

250-32Screw,machine

Heathkit Co Inc Dba Heathkit Educational Systems · NSN 5305-01-149-0730 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-149-0730 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-149-0730. Primary manufacturer part number: 250-32.
Features
  • Screw,machine — FSC 5305
  • Fastener Length: 0.375 INCHES NOMINAL IN
  • Thread Class: 2A A
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Purchase Description Identification: 88273-MODEL ET-3400
  • Nominal Thread Diameter: 0.138 INCHES IN
  • Internal Drive Style: SLOT
  • Thread Quantity Per Inch: 32
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-149-0730, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Heathkit Co Inc Dba Heathkit Educational Systems. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-149-0730
Primary Part Number250-32
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerHeathkit Co Inc Dba Heathkit Educational Systems
StatusACTIVE
Fastener Length0.375 INCHES NOMINAL IN
Thread Class2A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Purchase Description Identification88273-MODEL ET-3400
Nominal Thread Diameter0.138 INCHES IN
Internal Drive StyleSLOT
Thread Quantity Per Inch32
Head StylePAN NO. 2
Thread DirectionRIGHT-HAND
Head Height0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
Thread Length0.375 INCHES NOMINAL IN
Head Diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-367-474025032 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
4310-00-374-733925032 INTERCHANGEABLE
Piston,compressor
Hdt Expeditionary Systems Inc
5930-00-548-5671 INTERCHANGEABLE
Switch,rotary
5331-00-582-24620923566-4 INTERCHANGEABLE
O-Ring
New Holland Construction
2510-01-117-962025032 INTERCHANGEABLE
Hood,engine Compartment
Jetstream of Houston, Llp Dba Jetstream of Houston Llp
1730-01-142-908825032 INTERCHANGEABLE
Cylinder Assembly
Time Manufacturing Company Dba Time Manufacturing Company
4730-01-211-522225032 INTERCHANGEABLE
Plug,pipe
Twg Canada Consolidated Inc
1005-01-621-2136 INTERCHANGEABLE
Protector,rail
5340-01-624-360025032 INTERCHANGEABLE
Door,access,utility
Silver King Refrigeration Inc.
Cross-Reference Index
Part NumberManufacturer
250-32 PRIMARY Heathkit Co Inc Dba Heathkit Educational Systems (USA)
Related Parts
5330-00-367-4740INTERCHANGEABLE
GASKET
25032
4310-00-374-7339INTERCHANGEABLE
PISTON,COMPRESSOR
25032
5930-00-548-5671INTERCHANGEABLE
SWITCH,ROTARY
5331-00-582-2462INTERCHANGEABLE
O-RING
0923566-4
2510-01-117-9620INTERCHANGEABLE
HOOD,ENGINE COMPARTMENT
25032
1730-01-142-9088INTERCHANGEABLE
CYLINDER ASSEMBLY
25032
4730-01-211-5222INTERCHANGEABLE
PLUG,PIPE
25032
1005-01-621-2136INTERCHANGEABLE
PROTECTOR,RAIL
5340-01-624-3600INTERCHANGEABLE
DOOR,ACCESS,UTILITY
25032

Frequently Asked Questions

What is NSN 5305-01-149-0730?

NSN 5305-01-149-0730 is a Screw,machine, manufactured by Heathkit Co Inc Dba Heathkit Educational Systems, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-149-0730?

NSN 5305-01-149-0730 has 1 cross-referenced part number: 250-32 (Heathkit Co Inc Dba Heathkit Educational Systems).

What NSN replaces 5305-01-149-0730?

There are 9 known substitutes for 5305-01-149-0730: 5330-00-367-4740, 4310-00-374-7339, 5930-00-548-5671 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 250-32?

Key specifications for 250-32: Fastener Length: 0.375 INCHES NOMINAL IN; Thread Class: 2A A; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Purchase Description Identification: 88273-MODEL ET-3400. 12 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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