12705-12C-52 — SCREW,SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

12705-12C-52: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.977 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN, thread_length: 0.693 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-394-5975, 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

12705-12C-52

NSN: 5305-01-394-5975
FSC: 5305 — Screws
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	FLAT CHAMFER
head_height	0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
thread_class	3A A
head_diameter	0.977 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
thread_length	0.693 INCHES NOMINAL IN
shoulder_shape	ROUND FIRST SHOULDER
fastener_length	4.125 INCHES NOMINAL IN
hardness_rating	36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length	3.157 INCHES NOMINAL FIRST SHOULDER IN
special_features	SIDE OF HEAD MAY BE PLAIN OR KNURLED. THREADS AND SHOULDER ARE UNDERCUT FOR RELIEF.
thread_direction	RIGHT-HAND
NSN	5305-01-394-5975

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN

•

HEAD HEIGHT: 0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN

•

FASTENER LENGTH: 4.125 INCHES NOMINAL IN

•

SHOULDER LENGTH: 3.157 INCHES NOMINAL FIRST SHOULDER IN

•

SHOULDER DIAMETER: 0.747 INCHES MINIMUM AND 0.748 INCHES MAXIMUM FIRST SHOULDER IN

•

THREAD LENGTH: 0.693 INCHES NOMINAL IN

•

SHOULDER SHAPE: ROUND FIRST SHOULDER

•

HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.375 INCHES NOMINAL IN
HEAD HEIGHT	0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
FASTENER LENGTH	4.125 INCHES NOMINAL IN
SHOULDER LENGTH	3.157 INCHES NOMINAL FIRST SHOULDER IN
SHOULDER DIAMETER	0.747 INCHES MINIMUM AND 0.748 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH	0.693 INCHES NOMINAL IN
SHOULDER SHAPE	ROUND FIRST SHOULDER
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER	0.625 INCHES IN
HEAD STYLE	FLAT CHAMFER

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 1

8U56106-114Reference 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 12705-12C-52?

12705-12C-52 is a SCREW,SHOULDER.

What parts can replace 12705-12C-52?

There is 1 known substitute for 12705-12C-52: 8U56106-114. Substitute compatibility should be verified for your specific system.

What is the NSN for 12705-12C-52?

12705-12C-52 is cataloged in the U.S. Government catalog under NSN 5305-01-394-5975. This indicates validated use in U.S. government and defense supply chains.

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