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999F0903 FIND 31 — PIN,GROOVED,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

999F0903 FIND 31: PIN,GROOVED,HEADLESS.

The PIN,GROOVED,HEADLESS is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, special_features: DIAMETER 5/16 X 3/4 INCHES LONG IN, end_item_identification: PUMP UNIT, CENTRIFUGAL, material_document_and_classification: MONEL MFR REF SINGLE MATERIAL RESPONSE OVERALL, part_name_assigned_by_controlling_agency: GROOVE,PIN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-468-7983, 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
999F0903 FIND 31
NSN: 5315-01-468-7983
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
special_featuresDIAMETER 5/16 X 3/4 INCHES LONG IN
end_item_identificationPUMP UNIT, CENTRIFUGAL
material_document_and_classificationMONEL MFR REF SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyGROOVE,PIN
NSN5315-01-468-7983
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 999F0903 FIND 31 · 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 DOCUMENT AND CLASSIFICATION: MONEL MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: NICKEL ALLOY OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONMONEL MFR REF SINGLE MATERIAL RESPONSE OVERALL
SPECIAL FEATURESDIAMETER 5/16 X 3/4 INCHES LONG IN
PART NAME ASSIGNED BY CONTROLLING AGENCYGROOVE,PIN
END ITEM IDENTIFICATIONPUMP UNIT, CENTRIFUGAL
MATERIALNICKEL ALLOY OVERALL
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 999F0903 FIND 31?
999F0903 FIND 31 is a PIN,GROOVED,HEADLESS.
What is the NSN for 999F0903 FIND 31?
999F0903 FIND 31 is cataloged in the U.S. Government catalog under NSN 5315-01-468-7983. 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.