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Technical Data Sheet
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28339 — WASHER,LOCK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

28339: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-00-018-9810, 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
28339
NSN: 5330-00-018-9810
NIINs: 000189810, 001248611
FSC: 5330 — Packing and Gasket Materials
CAGE: 5RQL2 — DRS ENVIRONMENTAL SYSTEMS INC (USA)
SPECIFICATIONS
special_featuresMAGNETIC PERMEABILITY SHALL BE LESS THAN 1.2 BEFORE FABRICATION AND NOT GREATER THAN 2.0 AFTER FABRICATION AS MEASURED IN A 200 OERSTED FIELD
NSN5330-00-018-9810
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 28339 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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CROSS-SECTIONAL HEIGHT: 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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CROSS-SECTIONAL SHAPE STYLE: CUP
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ANGLE: 43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
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PERIPHERAL DIAMETER: 2.113 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN
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CENTER HOLE DIAMETER: 1.803 INCHES MINIMUM AND 1.823 INCHES MAXIMUM IN
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MATERIAL: ALUMINUM ALLOY 1100 OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLECUP
ANGLE43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM
PERIPHERAL DIAMETER2.113 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.803 INCHES MINIMUM AND 1.823 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY 1100 OVERALL
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 28339?
28339 is a WASHER,LOCK.
What is the NSN for 28339?
28339 is cataloged in the U.S. Government catalog under NSN 5330-00-018-9810. This indicates validated use in U.S. government and defense supply chains.
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