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15985N18 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

15985N18: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: SILICON BODY, special_features: MATERIAL:SILICON CARBIDE, end_item_identification: PUMP CTFGL 1.5X1X4 IMP 60GPM, part_name_assigned_by_controlling_agency: (INAVY)THRUST WASHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-563-4841, 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
15985N18
NSN: 5310-01-563-4841
FSC: 5310 — Nuts and Washers
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialSILICON BODY
special_featuresMATERIAL:SILICON CARBIDE
end_item_identificationPUMP CTFGL 1.5X1X4 IMP 60GPM
part_name_assigned_by_controlling_agency(INAVY)THRUST WASHER
NSN5310-01-563-4841
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 15985N18 · 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
•
MATERIAL: SILICON BODY
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESMATERIAL:SILICON CARBIDE
PART NAME ASSIGNED BY CONTROLLING AGENCY(INAVY)THRUST WASHER
END ITEM IDENTIFICATIONPUMP CTFGL 1.5X1X4 IMP 60GPM
MATERIALSILICON BODY
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 3
PL 15990N18 IT NO. 778Reference document
Same NSN cross-reference
Reference document — Secondary reference
1.5X1X4IMP778X1Reference document
Same NSN cross-reference
Reference document — Secondary reference
31.5X1X4IMP778X1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 15985N18?
15985N18 is a WASHER,FLAT.
What parts can replace 15985N18?
There are 3 known substitutes for 15985N18: PL 15990N18 IT NO. 778, 1.5X1X4IMP778X1, 31.5X1X4IMP778X1. Substitute compatibility should be verified for your specific system.
What is the NSN for 15985N18?
15985N18 is cataloged in the U.S. Government catalog under NSN 5310-01-563-4841. This indicates validated use in U.S. government and defense supply chains.
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