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15549Z — PIN,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

15549Z: PIN,LOCK.

The PIN,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, prong_length: 1.000 INCHES NOMINAL IN, opening_width: 0.257 INCHES NOMINAL IN, style_designator: LOCK, surface_treatment: PASSIVATE OVERALL, wire_stock_diameter: 0.055 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-953-3753, 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
15549Z
NSN: 5315-00-953-3753
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 73760 — ITT AEROSPACE CONTROLS LLC DBA ITT AEROSPACE CONTROLS UNIT S (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
prong_length1.000 INCHES NOMINAL IN
opening_width0.257 INCHES NOMINAL IN
style_designatorLOCK
surface_treatmentPASSIVATE OVERALL
wire_stock_diameter0.055 INCHES NOMINAL IN
material_document_and_classificationQQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationE664 FSCM 73760 MFR REF SINGLE TREATMENT RESPONSE OVERALL
NSN5315-00-953-3753
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 15549Z · 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
•
WIRE STOCK DIAMETER: 0.055 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: E664 FSCM 73760 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: LOCK
•
OPENING WIDTH: 0.257 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PRONG LENGTH: 1.000 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 302 OVERALL
TECHNICAL CHARACTERISTICS
WIRE STOCK DIAMETER0.055 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONE664 FSCM 73760 MFR REF SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORLOCK
OPENING WIDTH0.257 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PRONG LENGTH1.000 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 302 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 15549Z?
15549Z is a PIN,LOCK.
What is the NSN for 15549Z?
15549Z is cataloged in the U.S. Government catalog under NSN 5315-00-953-3753. 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.