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Technical Data Sheet
PartsTable / COMPONENT / 1261181
1261181 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include head_height: 0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN, head_diameter: 1.310 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN, thread_length: 1.110 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN, fastener_length: 2.300 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN, distance_from_centerline_to_flat: 0.425 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, nonstandard_thread_pitch_diameter: +0.7044 TO 0.7084 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-308-6596, 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
1261181
NSN: 5306-00-308-6596
FSC: 5306
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
head_height0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
head_diameter1.310 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
thread_length1.110 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
fastener_length2.300 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN
distance_from_centerline_to_flat0.425 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
nonstandard_thread_pitch_diameter+0.7044 TO 0.7084 INCHES IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5306-00-308-6596
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1261181 · 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
•
DISTANCE FROM CENTERLINE TO FLAT: 0.425 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
HEAD DIAMETER: 1.310 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.300 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
•
NONSTANDARD THREAD PITCH DIAMETER: +0.7044 TO 0.7084 INCHES IN
•
THREAD LENGTH: 1.110 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM CENTERLINE TO FLAT0.425 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
HEAD DIAMETER1.310 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
FASTENER LENGTH2.300 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN
HEAD HEIGHT0.250 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
NONSTANDARD THREAD PITCH DIAMETER+0.7044 TO 0.7084 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD LENGTH1.110 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
RNR70K9093FMInterchangeable
interchangeable cross-reference
interchangeable
59536Interchangeable
interchangeable cross-reference
interchangeable
4703-192328Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS81822/3Interchangeable
interchangeable cross-reference
interchangeable
C9103-26-6Interchangeable
interchangeable cross-reference
interchangeable
2864315-129Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1261181?
1261181 is a BOLT,SHOULDER.
What parts can replace 1261181?
There are 8 known substitutes for 1261181: RNR70K9093FM, 59536, 4703-192328 and 5 more. Substitute compatibility should be verified for your specific system.
Is 1261181 still available?
1261181 is currently cancelled.
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Last verified: July 2026