PartsTable
Technical Data Sheet
SKC-1198 ITEM X139-7 ✓ 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 5315-01-407-3902, 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
SKC-1198 ITEM X139-7
NSN: 5315-01-407-3902
FSC: 5315
CAGE: 0APJ5 — COFFIN TURBO PUMP INC (USA)
SPECIFICATIONS
Part NumberSKC-1198 ITEM X139-7
NSN5315-01-407-3902
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SKC-1198 ITEM X139-7 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
4HM49Interchangeable
interchangeable cross-reference
interchangeable
184672Interchangeable
interchangeable cross-reference
interchangeable
18476-2Interchangeable
interchangeable cross-reference
interchangeable
18467Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SKC-1198 ITEM X139-7?
SKC-1198 ITEM X139-7 is a PIN,STRAIGHT,HEADLESS.
What parts can replace SKC-1198 ITEM X139-7?
There are 4 known substitutes for SKC-1198 ITEM X139-7: 4HM49, 184672, 18476-2 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SKC-1198 ITEM X139-7?
SKC-1198 ITEM X139-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-407-3902. This indicates validated use in U.S. government and defense supply chains.
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