2256274-4 — SCREW,SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

2256274-4: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include head_style: FLAT CHAMFER, head_height: 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.729 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, thread_length: 0.337 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-280-6735, 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

2256274-4

NSN: 5305-01-280-6735
FSC: 5305 — Screws
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

head_style	FLAT CHAMFER
head_height	0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
thread_class	2A A
head_diameter	0.729 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
thread_length	0.337 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
shoulder_shape	ROUND FIRST SHOULDER
fastener_length	0.683 INCHES MINIMUM AND 0.723 INCHES MAXIMUM IN
shoulder_length	0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM FIRST SHOULDER IN
special_features	GROVE BETWEEN SHOULDER AND THREADS 0.073-0.093IN. DIA; 0.130-0.140 IN. LG SHOULDER HARDNESS RC63.0 IN
thread_direction	RIGHT-HAND
shoulder_diameter	0.4960 INCHES MINIMUM AND 0.4980 INCHES MAXIMUM FIRST SHOULDER IN
surface_treatment	CADMIUM AND CHROMATE OVERALL
NSN	5305-01-280-6735

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.312 INCHES NOMINAL IN

•

HEAD HEIGHT: 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.683 INCHES MINIMUM AND 0.723 INCHES MAXIMUM IN

•

SHOULDER LENGTH: 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM FIRST SHOULDER IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

SHOULDER DIAMETER: 0.4960 INCHES MINIMUM AND 0.4980 INCHES MAXIMUM FIRST SHOULDER IN

•

THREAD LENGTH: 0.337 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN

•

SHOULDER SHAPE: ROUND FIRST SHOULDER

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.312 INCHES NOMINAL IN
HEAD HEIGHT	0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
FASTENER LENGTH	0.683 INCHES MINIMUM AND 0.723 INCHES MAXIMUM IN
SHOULDER LENGTH	0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER	0.4960 INCHES MINIMUM AND 0.4980 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH	0.337 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
SHOULDER SHAPE	ROUND FIRST SHOULDER
NOMINAL THREAD DIAMETER	0.375 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.

5305-00-001-5016 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

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

Ready to buy 2256274-4?

Compare prices from verified sellers on eBay

Buy on eBay →

As an eBay Partner, PartsTable may earn a commission. Your price is not affected.

FREQUENTLY ASKED QUESTIONS

What is 2256274-4?

2256274-4 is a SCREW,SHOULDER.

What is the NSN for 2256274-4?

2256274-4 is cataloged in the U.S. Government catalog under NSN 5305-01-280-6735. This indicates validated use in U.S. government and defense supply chains.

Community Feedback

2256274-4 — SCREW,SHOULDER

Request a Quote — 2256274-4