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136541-1 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

136541-1: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, head_style: FLAT CHAMFER, head_height: 0.136 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.220 INCHES NOMINAL IN, thread_length: 0.370 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-197-8162, 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
136541-1
NSN: 5306-01-197-8162
FSC: 5306 — Bolts
CAGE: 37695 — RAYTHEON COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
head_styleFLAT CHAMFER
head_height0.136 INCHES NOMINAL IN
thread_class2A A
head_diameter0.220 INCHES NOMINAL IN
thread_length0.370 INCHES NOMINAL IN
fastener_length2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM IN
special_featuresFINISH COLOR BLACK
thread_directionRIGHT-HAND
surface_treatmentOXIDE OVERALL
width_across_flats0.1094 INCHES MINIMUM AND 0.1111 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5306-01-197-8162
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 136541-1 · 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
•
WIDTH ACROSS FLATS: 0.1094 INCHES MINIMUM AND 0.1111 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.136 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.370 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.100 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.1094 INCHES MINIMUM AND 0.1111 INCHES MAXIMUM IN
HEAD HEIGHT0.136 INCHES NOMINAL IN
FASTENER LENGTH2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.370 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.100 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
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

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
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FREQUENTLY ASKED QUESTIONS
What is 136541-1?
136541-1 is a BOLT,INTERNAL WRENCHING.
What is the NSN for 136541-1?
136541-1 is cataloged in the U.S. Government catalog under NSN 5306-01-197-8162. 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.