3M1131-2 — SCREW,SHOULDER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

3M1131-2: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: FLAT CHAMFER, head_height: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.360 INCHES NOMINAL IN, thread_length: 0.255 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-235-7495, 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

3M1131-2

NSN: 5305-01-235-7495
FSC: 5305 — Screws
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	STEEL COMP XM-13 OVERALL
head_style	FLAT CHAMFER
head_height	0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
thread_class	3A A
head_diameter	0.360 INCHES NOMINAL IN
thread_length	0.255 INCHES NOMINAL IN
shoulder_shape	ROUND FIRST SHOULDER
fastener_length	0.625 INCHES NOMINAL IN
shoulder_length	0.300 INCHES NOMINAL FIRST SHOULDER IN
special_features	UNDERCUT 0.020 IN. MIN,0.030 IN. MAX WIDTH IN
thread_direction	RIGHT-HAND
shoulder_diameter	0.250 INCHES NOMINAL FIRST SHOULDER IN
NSN	5305-01-235-7495

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN

•

HEAD HEIGHT: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.625 INCHES NOMINAL IN

•

SHOULDER LENGTH: 0.300 INCHES NOMINAL FIRST SHOULDER IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: P.S. 13105 FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL

•

SHOULDER DIAMETER: 0.250 INCHES NOMINAL FIRST SHOULDER IN

•

THREAD LENGTH: 0.255 INCHES NOMINAL IN

•

SHOULDER SHAPE: ROUND FIRST SHOULDER

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN
HEAD HEIGHT	0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
FASTENER LENGTH	0.625 INCHES NOMINAL IN
SHOULDER LENGTH	0.300 INCHES NOMINAL FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	P.S. 13105 FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER	0.250 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH	0.255 INCHES NOMINAL IN
SHOULDER SHAPE	ROUND FIRST SHOULDER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.164 INCHES IN

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

0018-020-000Same 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 3M1131-2?

3M1131-2 is a SCREW,SHOULDER.

What parts can replace 3M1131-2?

There is 1 known substitute for 3M1131-2: 0018-020-000. Substitute compatibility should be verified for your specific system.

What is the NSN for 3M1131-2?

3M1131-2 is cataloged in the U.S. Government catalog under NSN 5305-01-235-7495. This indicates validated use in U.S. government and defense supply chains.

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