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12271549 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12271549: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1213 OVERALL, head_style: FLAT CHAMFER, head_height: 0.210 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.930 INCHES NOMINAL IN, thread_length: 3.390 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-113-4666, 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
12271549
NSN: 5305-01-113-4666
FSC: 5305 — Screws
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1213 OVERALL
head_styleFLAT CHAMFER
head_height0.210 INCHES NOMINAL IN
thread_class2A A
head_diameter0.930 INCHES NOMINAL IN
thread_length3.390 INCHES NOMINAL IN
fastener_length4.040 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.310 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.625 INCHES IN
NSN5305-01-113-4666
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12271549 · 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
•
WIDTH ACROSS FLATS: 0.310 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.210 INCHES NOMINAL IN
•
FASTENER LENGTH: 4.040 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 3.390 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.310 INCHES NOMINAL IN
HEAD HEIGHT0.210 INCHES NOMINAL IN
FASTENER LENGTH4.040 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH3.390 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTCADMIUM OVERALL
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
CL-45-SSCSame 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 12271549?
12271549 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 12271549?
There is 1 known substitute for 12271549: CL-45-SSC. Substitute compatibility should be verified for your specific system.
What is the NSN for 12271549?
12271549 is cataloged in the U.S. Government catalog under NSN 5305-01-113-4666. 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.