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11861E3D12A — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

11861E3D12A: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: FILLISTER COUNTERSUNK, grip_length: 0.750 INCHES NOMINAL IN, head_height: 0.042 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.202 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-541-5269, 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
11861E3D12A
NSN: 5306-01-541-5269
FSC: 5306 — Bolts
CAGE: 59563 — REID PRODUCTS INC. DBA REID PRODUCTS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
head_styleFILLISTER COUNTERSUNK
grip_length0.750 INCHES NOMINAL IN
head_height0.042 INCHES NOMINAL IN
thread_class3A A
grip_diameter0.202 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
head_diameter0.293 INCHES MINIMUM AND 0.302 INCHES MAXIMUM IN
thread_length0.345 INCHES NOMINAL IN
fastener_length1.095 INCHES NOMINAL IN
special_featuresINTERNAL DRIVE IS 6 LOBE RECESS PER NAS1800; HAS 0.070 IN. DIA. HOLE DRILLED THRU 0.106 IN. FROM TIP; NO LUBRICANT IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
NSN5306-01-541-5269
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 11861E3D12A · 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
•
HEAD HEIGHT: 0.042 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.095 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-L-87132, TYPE 1, GRADE B, W/CETYL ALCOHOL MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.345 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
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HEAD STYLE: FILLISTER COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.042 INCHES NOMINAL IN
FASTENER LENGTH1.095 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-L-87132, TYPE 1, GRADE B, W/CETYL ALCOHOL MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.345 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFILLISTER COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.750 INCHES NOMINAL IN
GRIP DIAMETER0.202 INCHES MINIMUM AND 0.203 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 3
TX1027E3D12XASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
WC1277E3D12ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3M1277E3D12AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11861E3D12A?
11861E3D12A is a BOLT,CLOSE TOLERANCE.
What parts can replace 11861E3D12A?
There are 3 known substitutes for 11861E3D12A: TX1027E3D12XA, WC1277E3D12A, 3M1277E3D12A. Substitute compatibility should be verified for your specific system.
What is the NSN for 11861E3D12A?
11861E3D12A is cataloged in the U.S. Government catalog under NSN 5306-01-541-5269. 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.