11861E4D21A — BOLT,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

11861E4D21A: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, hole_type: DRILLED, head_style: FLAT COUNTERSUNK, grip_length: 1.312 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.2648 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-599-4544, 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

11861E4D21A

NSN: 5306-01-599-4544
FSC: 5306 — Bolts
CAGE: 59563 — REID PRODUCTS INC. DBA REID PRODUCTS INC (USA)

SPECIFICATIONS

material	NICKEL ALLOY 718 OVERALL
hole_type	DRILLED
head_style	FLAT COUNTERSUNK
grip_length	1.312 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.2648 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM IN
head_diameter	0.3859 INCHES MINIMUM AND 0.3948 INCHES MAXIMUM IN
hole_diameter	0.076 INCHES NOMINAL IN
hole_quantity	1
thread_length	0.425 INCHES NOMINAL IN
fastener_length	1.737 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
NSN	5306-01-599-4544

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 1.737 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-L-87132, TYPE 1, GRADE B MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.425 INCHES NOMINAL IN

•

HOLE CONFIGURATION STYLE: ROUND

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	1.737 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-L-87132, TYPE 1, GRADE B MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.425 INCHES NOMINAL IN
HOLE CONFIGURATION STYLE	ROUND
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	1.312 INCHES NOMINAL IN
GRIP DIAMETER	0.2648 INCHES MINIMUM AND 0.2651 INCHES MAXIMUM IN

OTHER ITEMS IN FSC 5306 — Bolts

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017

SUBSTITUTES & CROSS-REFERENCES 2

TX1027E4D21ASame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

3M1277E4D21ASame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 11861E4D21A?

11861E4D21A is a BOLT,CLOSE TOLERANCE.

What parts can replace 11861E4D21A?

There are 2 known substitutes for 11861E4D21A: TX1027E4D21A, 3M1277E4D21A. Substitute compatibility should be verified for your specific system.

What is the NSN for 11861E4D21A?

11861E4D21A is cataloged in the U.S. Government catalog under NSN 5306-01-599-4544. This indicates validated use in U.S. government and defense supply chains.

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