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PartsTable / COMPONENT / 120038-1
120038-1 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: TEST HEAD, INFLATABLE FACE SEAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-051-8380, 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
120038-1
NSN: 5315-01-051-8380
FSC: 5315
CAGE: 38200 — DRS TECHNOLOGIES CANADA LTD (CAN)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyTEST HEAD, INFLATABLE FACE SEAL
NSN5315-01-051-8380
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 120038-1 · 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
•
UNDERCUT DIAMETER: 0.1635 INCHES MINIMUM AND 0.1665 INCHES MAXIMUM IN
•
FIRST END TAPER LENGTH: 0.020 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
FIRST END LOCATION: BOTH ENDS
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 440C OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 58.0 ROCKWELL C NOMINAL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
UNDERCUT DIAMETER0.1635 INCHES MINIMUM AND 0.1665 INCHES MAXIMUM IN
FIRST END TAPER LENGTH0.020 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
FIRST END LOCATIONBOTH ENDS
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 440C OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING58.0 ROCKWELL C NOMINAL OVERALL
STYLE DESIGNATORGROOVE
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
C38Interchangeable
interchangeable cross-reference
interchangeable
120-038Interchangeable
interchangeable cross-reference
interchangeable
1200381Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 120038-1?
120038-1 is a PIN,GROOVED,HEADLESS.
What parts can replace 120038-1?
There are 3 known substitutes for 120038-1: C38, 120-038, 1200381. Substitute compatibility should be verified for your specific system.
What is the NSN for 120038-1?
120038-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-051-8380. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026