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11508027 — SCREW,TAPPING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

11508027: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON EXTENDED WASHER, head_height: 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, fastener_length: 1.450 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN, features_provided: CASEHARDENED, surface_treatment: PHOSPHATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-151-8331, 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
11508027
NSN: 5305-01-151-8331
FSC: 5305 — Screws
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON EXTENDED WASHER
head_height0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
fastener_length1.450 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN
features_providedCASEHARDENED
surface_treatmentPHOSPHATE OVERALL
width_between_flats0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
internal_drive_styleW/O INTERNAL DRIVE
nonmachine_thread_styleGIMLET POINT (TYPE A, AB OR BA)
extended_washer_diameter0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
extended_washer_thickness0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
nonmachine_nominal_thread_diameter0.250 INCHES IN
NSN5305-01-151-8331
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 11508027 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
EXTENDED WASHER THICKNESS: 0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.450 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: G-4435-M CODE A FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
•
NONMACHINE THREAD STYLE: GIMLET POINT (TYPE A, AB OR BA)
•
FEATURES PROVIDED: CASEHARDENED
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.250 INCHES IN
EXTENDED WASHER THICKNESS0.030 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
HEAD HEIGHT0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
FASTENER LENGTH1.450 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONG-4435-M CODE A FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN
NONMACHINE THREAD STYLEGIMLET POINT (TYPE A, AB OR BA)
FEATURES PROVIDEDCASEHARDENED
HEAD STYLEHEXAGON EXTENDED WASHER
WIDTH BETWEEN FLATS0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
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
9422636Reference document
Same NSN cross-reference
Reference document — Secondary reference
11504744Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11508027?
11508027 is a SCREW,TAPPING.
What parts can replace 11508027?
There are 2 known substitutes for 11508027: 9422636, 11504744. Substitute compatibility should be verified for your specific system.
What is the NSN for 11508027?
11508027 is cataloged in the U.S. Government catalog under NSN 5305-01-151-8331. 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.