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123-1263 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

123-1263: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include end_item_identification: F18 E/F FIGHTER AIRCRAFT-FIRST, criticality_code_justification: AGAV, part_name_assigned_by_controlling_agency: PIN,STRAIGHT, HEADLESS. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-561-3312, 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
123-1263
NSN: 5315-01-561-3312
NIINs: 015613312, 016447313
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 10639 — AVIONICS SPECIALTIES, INC. (USA)
SPECIFICATIONS
end_item_identificationF18 E/F FIGHTER AIRCRAFT-FIRST
criticality_code_justificationAGAV
part_name_assigned_by_controlling_agencyPIN,STRAIGHT, HEADLESS
NSN5315-01-561-3312
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 123-1263 · 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
•
CRITICALITY CODE JUSTIFICATION: AGAV
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONAGAV
PART NAME ASSIGNED BY CONTROLLING AGENCYPIN,STRAIGHT, HEADLESS
END ITEM IDENTIFICATIONF18 E/F FIGHTER AIRCRAFT-FIRST
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 123-1263?
123-1263 is a WASHER,FLAT.
What is the NSN for 123-1263?
123-1263 is cataloged in the U.S. Government catalog under NSN 5315-01-561-3312. 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.