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91S2-21W — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91S2-21W: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include material: STEEL STUD, stud_diameter: 0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL, securing_device_type: SPRING, material_document_and_classification: ASTM A109 ASSN STD SINGLE MATERIAL RESPONSE HEAD, surface_treatment_document_and_classification: QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-588-9470, 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
91S2-21W
NSN: 5325-01-588-9470
FSC: 5325 — Fastening Devices
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL STUD
stud_diameter0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
securing_device_typeSPRING
material_document_and_classificationASTM A109 ASSN STD SINGLE MATERIAL RESPONSE HEAD
surface_treatment_document_and_classificationQQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
distance_from_engaging_member_to_largest_bearing_surface_of_head6.665 INCHES NOMINAL IN
NSN5325-01-588-9470
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91S2-21W · 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, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A109 ASSN STD SINGLE MATERIAL RESPONSE HEAD
•
SECURING DEVICE TYPE: SPRING
•
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD: 6.665 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL STUD
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A109 ASSN STD SINGLE MATERIAL RESPONSE HEAD
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A510 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A853 ASSN STD SINGLE MATERIAL RESPONSE STUD
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A684 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A682 ASSN STD SINGLE MATERIAL RESPONSE WASHER
SECURING DEVICE TYPESPRING
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD6.665 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL STUD
MATERIALSTEEL HEAD
MATERIALSTEEL WASHER
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91S2-21W?
91S2-21W is a STUD ASSEMBLY,TURNLOCK FASTENER.
What is the NSN for 91S2-21W?
91S2-21W is cataloged in the U.S. Government catalog under NSN 5325-01-588-9470. This indicates validated use in U.S. government and defense supply chains.
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