PartsTable
Technical Data Sheet
Download PDF

25090174 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

25090174: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 2.125 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN, fastener_length: 2.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-150-7737, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
25090174
NSN: 5305-01-150-7737
FSC: 5305 — Screws
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
thread_class3A A
thread_length2.125 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
fastener_length2.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch16
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-150-7737
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 25090174 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.250 INCHES NOMINAL IN
•
THREAD LENGTH: 2.125 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
FASTENER LENGTH2.250 INCHES NOMINAL IN
THREAD LENGTH2.125 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
THREAD CLASS3A A
THREAD QUANTITY PER INCH16
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 2
4AX124Reference document
Same NSN cross-reference
Reference document — Secondary reference
5001845881Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 25090174?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 25090174?
25090174 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 25090174?
There are 2 known substitutes for 25090174: 4AX124, 5001845881. Substitute compatibility should be verified for your specific system.
What is the NSN for 25090174?
25090174 is cataloged in the U.S. Government catalog under NSN 5305-01-150-7737. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 25090174

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.