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C4BM1751-1 — PIN,SHOULDER,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

C4BM1751-1: PIN,SHOULDER,HEADLESS.

The PIN,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, shank_length: 0.300 INCHES NOMINAL IN, overall_length: 1.900 INCHES NOMINAL IN, shank_diameter: 0.200 INCHES NOMINAL IN, first_end_style: OVAL, second_end_style: SQUARE. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-446-1601, 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
C4BM1751-1
NSN: 5315-00-446-1601
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 1C762 — DE HAVILLAND PARTS & AEROSTRUCTURES LIMITED DIV FIELD AVIATION (CAN)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
shank_length0.300 INCHES NOMINAL IN
overall_length1.900 INCHES NOMINAL IN
shank_diameter0.200 INCHES NOMINAL IN
first_end_styleOVAL
second_end_styleSQUARE
style_designatorSHOULDER
shoulder_diameter0.2975 INCHES NOMINAL IN
first_end_locationSHORT SHANK END
second_shank_length1.100 INCHES NOMINAL IN
second_shank_diameter0.200 INCHES NOMINAL IN
first_end_outer_radius0.125 INCHES NOMINAL IN
NSN5315-00-446-1601
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: C4BM1751-1 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHANK DIAMETER: 0.200 INCHES NOMINAL IN
•
SECOND SHANK DIAMETER: 0.200 INCHES NOMINAL IN
•
FIRST END LOCATION: SHORT SHANK END
•
FIRST END STYLE: OVAL
•
SHANK LENGTH: 0.300 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDER
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.200 INCHES NOMINAL IN
SECOND SHANK DIAMETER0.200 INCHES NOMINAL IN
FIRST END LOCATIONSHORT SHANK END
FIRST END STYLEOVAL
SHANK LENGTH0.300 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH1.900 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SHOULDER DIAMETER0.2975 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is C4BM1751-1?
C4BM1751-1 is a PIN,SHOULDER,HEADLESS.
What is the NSN for C4BM1751-1?
C4BM1751-1 is cataloged in the U.S. Government catalog under NSN 5315-00-446-1601. 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.