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971240-8 — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

971240-8: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN, material: STEEL PIN, drive_type: SLOTTED, stud_diameter: 0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND CHROMATE OVERALL, stud_assembly_style: STUD ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-255-0737, 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
971240-8
NSN: 5325-00-255-0737
FSC: 5325 — Fastening Devices
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
diameter0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
materialSTEEL PIN
drive_typeSLOTTED
stud_diameter0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
stud_assembly_styleSTUD ASSEMBLY
securing_device_typeWASHER
eyelet_outside_diameter0.344 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN
turnlock_stud_head_styleFILLISTER
material_accommodated_thickness0.140 INCHES MINIMUM AND 0.154 INCHES MAXIMUM IN
material_document_and_classificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
NSN5325-00-255-0737
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 971240-8 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
EYELET OUTSIDE DIAMETER: 0.344 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN
•
DRIVE TYPE: SLOTTED
•
MATERIAL ACCOMMODATED THICKNESS: 0.140 INCHES MINIMUM AND 0.154 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN
•
DIAMETER: 0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
•
SECURING DEVICE TYPE: WASHER
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
EYELET OUTSIDE DIAMETER0.344 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN
DRIVE TYPESLOTTED
MATERIAL ACCOMMODATED THICKNESS0.140 INCHES MINIMUM AND 0.154 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING
DIAMETER0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
SECURING DEVICE TYPEWASHER
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD0.283 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
TURNLOCK STUD HEAD STYLEFILLISTER
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 3
530922-8Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
WDG9027-37Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FMC-006Same 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 971240-8?
971240-8 is a STUD ASSEMBLY,TURNLOCK FASTENER.
What parts can replace 971240-8?
There are 3 known substitutes for 971240-8: 530922-8, WDG9027-37, FMC-006. Substitute compatibility should be verified for your specific system.
What is the NSN for 971240-8?
971240-8 is cataloged in the U.S. Government catalog under NSN 5325-00-255-0737. 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.