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90251A179 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

90251A179: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: PLASTIC NYLON LOCKING FEATURE, head_style: HEADLESS (SETSCREW), point_style: CUP, thread_class: 3A A, point_diameter: 0.088 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN, fastener_length: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-643-9327, 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
90251A179
NSN: 5305-01-643-9327
FSC: 5305 — Screws
CAGE: 17910 — NYLOK LLC (USA)
SPECIFICATIONS
materialPLASTIC NYLON LOCKING FEATURE
head_styleHEADLESS (SETSCREW)
point_styleCUP
thread_class3A A
point_diameter0.088 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
fastener_length0.250 INCHES NOMINAL IN
locking_featurePATCH THREADS
thread_directionRIGHT-HAND
width_across_flats0.094 INCHES NOMINAL IN
point_chamfer_angle113.0 DEGREES MINIMUM AND 123.0 DEGREES MAXIMUM
internal_drive_styleHEXAGON
end_item_identificationDOOR, HELO HANGER STBD 1566-3
NSN5305-01-643-9327
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 90251A179 · 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
•
POINT DIAMETER: 0.088 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.094 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.250 INCHES NOMINAL IN
•
POINT CHAMFER ANGLE: 113.0 DEGREES MINIMUM AND 123.0 DEGREES MAXIMUM
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: HEADLESS (SETSCREW)
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: CUP
TECHNICAL CHARACTERISTICS
POINT DIAMETER0.088 INCHES MINIMUM AND 0.102 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.094 INCHES NOMINAL IN
FASTENER LENGTH0.250 INCHES NOMINAL IN
POINT CHAMFER ANGLE113.0 DEGREES MINIMUM AND 123.0 DEGREES MAXIMUM
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEHEADLESS (SETSCREW)
THREAD DIRECTIONRIGHT-HAND
POINT STYLECUP
LOCKING FEATUREPATCH THREADS
INTERNAL DRIVE STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES 2
210213Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
15669058 REV A FIND NO 12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90251A179?
90251A179 is a SETSCREW.
What parts can replace 90251A179?
There are 2 known substitutes for 90251A179: 210213, 15669058 REV A FIND NO 12. Substitute compatibility should be verified for your specific system.
What is the NSN for 90251A179?
90251A179 is cataloged in the U.S. Government catalog under NSN 5305-01-643-9327. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.