PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18972Screw,cap,hexagon Head

Fastenal Company Dba Fastenal Co · NSN 5305-01-552-8788 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-552-8788 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-552-8788. Primary manufacturer part number: 18972.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Thread Series Designator: UNF
  • Nominal Thread Diameter: 0.6250 INCHES IN
  • Thread Quantity Per Inch: 18
  • Thread Length: 6.000 INCHES NOMINAL IN
  • Head Style: HEXAGON
  • Fastener Length: 6.000 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-552-8788, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 8 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-552-8788
Primary Part Number18972
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNF
Nominal Thread Diameter0.6250 INCHES IN
Thread Quantity Per Inch18
Thread Length6.000 INCHES NOMINAL IN
Head StyleHEXAGON
Fastener Length6.000 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
2540-00-081-544161-181 INTERCHANGEABLE
Blade,windshield Wiper
Trico Products Corporation
3110-00-100-03552523 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
6220-00-761-220530-0101-3 INTERCHANGEABLE
Lens,light
Grimes Aerospace Company
5365-00-833-3649307197 INTERCHANGEABLE
Shim
Eaton Aerospace, Llc Dba Jackson South
6125-01-145-390918972 INTERCHANGEABLE
Stator,motor-Generator
Kurz & Root Generator Company, Llc
2540-01-178-076018972 INTERCHANGEABLE
Blade,windshield Wiper
S W Anderson Co
4820-01-196-119818972 PIECE 18 INTERCHANGEABLE
Seat,valve
Crane Co Div Valve Div
4030-01-197-51353946-1 INTERCHANGEABLE
Anchor
Manitowoc Engineering Co Division of the Manitowoc Co Inc
4820-01-221-559039461 INTERCHANGEABLE
Seat,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5306-01-551-83491AX165 INTERCHANGEABLE
Bolt,machine
Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations
Cross-Reference Index
Part NumberManufacturer
18972 Fastenal Company Dba Fastenal Co (USA)
1AX 165 Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations (USA)
MS35304-178 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
3001013 General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA)
39461 Barnes Group Inc. Dba Barnes Distribution (USA)
Related Parts
2540-00-081-5441INTERCHANGEABLE
BLADE,WINDSHIELD WIPER
61-181
3110-00-100-0355INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
2523
6220-00-761-2205INTERCHANGEABLE
LENS,LIGHT
30-0101-3
5365-00-833-3649INTERCHANGEABLE
SHIM
307197
6125-01-145-3909INTERCHANGEABLE
STATOR,MOTOR-GENERATOR
18972
2540-01-178-0760INTERCHANGEABLE
BLADE,WINDSHIELD WIPER
18972
4820-01-196-1198INTERCHANGEABLE
SEAT,VALVE
18972 PIECE 18
4030-01-197-5135INTERCHANGEABLE
ANCHOR
3946-1
4820-01-221-5590INTERCHANGEABLE
SEAT,VALVE
39461
5306-01-551-8349INTERCHANGEABLE
BOLT,MACHINE
1AX165
6545-01-588-1398INTERCHANGEABLE
MEDICAL MATERIEL SET,ADMINISTRAT
ASSEMBLAGE 972C

Frequently Asked Questions

What is NSN 5305-01-552-8788?

NSN 5305-01-552-8788 is a Screw,cap,hexagon Head, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-552-8788?

NSN 5305-01-552-8788 has 5 cross-referenced part numbers: 18972 (Fastenal Company Dba Fastenal Co), 1AX 165 (Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations), MS35304-178 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 3001013 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp), 39461 (Barnes Group Inc. Dba Barnes Distribution).

What NSN replaces 5305-01-552-8788?

There are 11 known substitutes for 5305-01-552-8788: 2540-00-081-5441, 3110-00-100-0355, 6220-00-761-2205 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18972?

Key specifications for 18972: End Item Identification: 2320-01-531-6425; MRAP BUFFALO MK2A2; Thread Direction: RIGHT-HAND; Thread Series Designator: UNF; Special Features: MATERIAL: THROUGH-HARDENED MEDIUM CARBON ALLOY STEEL; GRADE 8. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com