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Technical Data Sheet
PartsTable / COMPONENT / L1037
L1037 ✓ 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

CONNECTOR BODY,RECEPTACLE,ELECTR. Key specifications include material: STEEL, end_style: 90 DEGREE PARALLEL, body_style: STRAIGHT SHAPE, EXTERNAL COUPLING, ring_style: STRAIGHT GAP, shell_type: SOLID, thread_class: 2A A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-174-9855, 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
L1037
NSN: 5325-00-174-9855
FSC: 5325
CAGE: 73782 — TOWMOTOR CORP DALLAS PLANT SUB OF CATERPILLAR TRACTOR CO (USA)
SPECIFICATIONS
materialSTEEL
end_style90 DEGREE PARALLEL
body_styleSTRAIGHT SHAPE, EXTERNAL COUPLING
ring_styleSTRAIGHT GAP
shell_typeSOLID
thread_class2A A
usage_designEXTERNAL
overall_width0.954 INCHES MAXIMUM IN
overall_height0.954 INCHES MAXIMUM IN
overall_length0.780 INCHES NOMINAL IN
shell_materialALUMINUM ALLOY
insert_materialPLASTIC DIALLYL PHTHALATE SINGLE MATING END
NSN5325-00-174-9855
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: L1037 · 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
•
MATERIAL HARDNESS RATING: 42.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1065 TO 1070 ASSN STD SINGLE MATERIAL RESPONSE
•
USAGE DESIGN: EXTERNAL
•
END STYLE: 90 DEGREE PARALLEL
•
RING STYLE: STRAIGHT GAP
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL HARDNESS RATING42.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
CROSS-SECTIONAL SHAPE STYLEROUND
SPECIAL FEATURES3/32 IN. GAP OPENING IN
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1065 TO 1070 ASSN STD SINGLE MATERIAL RESPONSE
USAGE DESIGNEXTERNAL
END STYLE90 DEGREE PARALLEL
RING STYLESTRAIGHT GAP
INSIDE DIAMETER1.313 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
SX334Interchangeable
interchangeable cross-reference
interchangeable
21738REVLInterchangeable
interchangeable cross-reference
interchangeable
21738Interchangeable
interchangeable cross-reference
interchangeable
8444L3NInterchangeable
interchangeable cross-reference
interchangeable
203974-1Interchangeable
interchangeable cross-reference
interchangeable
134SCEC125-15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L1037?
L1037 is a CONNECTOR BODY,RECEPTACLE,ELECTR.
What parts can replace L1037?
There are 22 known substitutes for L1037: SX334, 21738REVL, 21738 and 19 more. Substitute compatibility should be verified for your specific system.
Is L1037 still available?
L1037 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026