PartsTable
Technical Data Sheet
S1999 ✓ 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,STRAIGHT,HEADLESS is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-010-3767, 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
S1999
NSN: 5315-00-010-3767
FSC: 5315
CAGE: 55509 — COOPER CAMERON CORP AJAX-SUPERIOR DIV (USA)
SPECIFICATIONS
Part NumberS1999
NSN5315-00-010-3767
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S1999 · 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
FIRST END TAPER ANGLE: 25.0 DEGREES NOMINAL
PIN OVERALL LENGTH: 0.738 INCHES MINIMUM AND 0.762 INCHES MAXIMUM IN
FIRST END STYLE: CHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A576 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1025 OR STEEL COMP 1027 OR STEEL COMP 1030 OR STEEL COMP 1524 OVERALL
PIN OVERALL DIAMETER: 0.3720 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
FIRST END TAPER LENGTH: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END TAPER ANGLE25.0 DEGREES NOMINAL
PIN OVERALL LENGTH0.738 INCHES MINIMUM AND 0.762 INCHES MAXIMUM IN
FIRST END STYLECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A576 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1025 OR STEEL COMP 1027 OR STEEL COMP 1030 OR STEEL COMP 1524 OVERALL
PIN OVERALL DIAMETER0.3720 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
FIRST END TAPER LENGTH0.031 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
103767Interchangeable
interchangeable cross-reference
interchangeable
8027521Interchangeable
interchangeable cross-reference
interchangeable
088-1-422Interchangeable
interchangeable cross-reference
interchangeable
TRCB221CInterchangeable
interchangeable cross-reference
interchangeable
RC20-220HMSP0RM5PCTInterchangeable
interchangeable cross-reference
interchangeable
4171306-604Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S1999?
S1999 is a PIN,STRAIGHT,HEADLESS.
What parts can replace S1999?
There are 24 known substitutes for S1999: 103767, 8027521, 088-1-422 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S1999?
S1999 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-010-3767. This indicates validated use in U.S. government and defense supply chains.
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