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001255 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

001255: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include size_designation: ADULT, accessory_components_and_quantity: 6 INCH FLEXTUBE,1; COLOR CODED LOW AND MEDIUM CONCENTRATION DIALS,1; HIGH HUMIDITY ADAPTER,1; 7 FEET TUBING,1 IN, part_name_assigned_by_controlling_agency: MASK ORONASAL ADULT MALE DESIGNED FOR AIR ENTRAINMENT OXYGENMASK. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-705-1538, 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
001255
NSN: 5310-00-705-1538
NIINs: 007051538, 011405333, 012385653
FSC: 5310 — Nuts and Washers
CAGE: 31922 — LEEDS AND NORTHRUP CO A UNIT OF GENERAL SIGNAL CORP (USA)
SPECIFICATIONS
size_designationADULT
special_featuresW/HOOD SNAP-FITS ONTO DIAL/SWIVELS 360 DEGREE FOR PATIENT MOBILITY; MEDIUM CONCENTRATIONS (30 PCT,35 PCT,40 PCT,45 PCT,50 PCT/55 PCT); DESIGNED FOR AIR ENTRAINMENT OXYGEN MASK; DISPOSABLE
accessory_components_and_quantity6 INCH FLEXTUBE,1; COLOR CODED LOW AND MEDIUM CONCENTRATION DIALS,1; HIGH HUMIDITY ADAPTER,1; 7 FEET TUBING,1 IN
part_name_assigned_by_controlling_agencyMASK ORONASAL ADULT MALE DESIGNED FOR AIR ENTRAINMENT OXYGENMASK
NSN5310-00-705-1538
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 001255 · 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
•
INTERNAL STRAIGHT KEY WIDTH: 0.094 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 1.188 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL IN
•
SURFACE TREATMENT: CHROMIUM OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
•
INTERNAL KEY QUANTITY: 1
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.094 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY0.250 INCHES NOMINAL IN
STYLE DESIGNATORKEY
OUTSIDE DIAMETER1.188 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
SURFACE TREATMENTCHROMIUM OVERALL
MATERIALCOPPER ALLOY OVERALL
INTERNAL KEY QUANTITY1
HOLE DIAMETER0.628 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
1-5-1-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 001255?
001255 is a WASHER,KEY.
What parts can replace 001255?
There is 1 known substitute for 001255: 1-5-1-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 001255?
001255 is cataloged in the U.S. Government catalog under NSN 5310-00-705-1538. This indicates validated use in U.S. government and defense supply chains.
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