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1604-261Y — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1604-261Y: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: PLASTIC, design_type: THREADED, thread_class: 2B, overall_diameter: 2.063 INCHES NOMINAL IN, inside_diameter_length: 0.563 INCHES NOMINAL IN, round_cap_outside_surface_condition: RIBBED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-720-6393, 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
1604-261Y
NSN: 5340-00-720-6393
FSC: 5340 — Hardware, Commercial
CAGE: 97945 — PENNWALT CORP S S WHITE INDUSTRIAL PRODUCTS DIV (USA)
SPECIFICATIONS
materialPLASTIC
design_typeTHREADED
thread_class2B
overall_diameter2.063 INCHES NOMINAL IN
inside_diameter_length0.563 INCHES NOMINAL IN
round_cap_outside_surface_conditionRIBBED
thread_size_and_series/type_designator1-7/8 IN.-12 UN IN
NSN5340-00-720-6393
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1604-261Y 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
•
DESIGN TYPE: THREADED
•
OVERALL DIAMETER: 2.063 INCHES NOMINAL IN
•
THREAD CLASS: 2B
•
MATERIAL: PLASTIC
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1-7/8 IN.-12 UN IN
•
INSIDE DIAMETER LENGTH: 0.563 INCHES NOMINAL IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: RIBBED
TECHNICAL CHARACTERISTICS
DESIGN TYPETHREADED
OVERALL DIAMETER2.063 INCHES NOMINAL IN
THREAD CLASS2B
MATERIALPLASTIC
THREAD SIZE AND SERIES/TYPE DESIGNATOR1-7/8 IN.-12 UN IN
INSIDE DIAMETER LENGTH0.563 INCHES NOMINAL IN
ROUND CAP OUTSIDE SURFACE CONDITIONRIBBED
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1604-261Y?
1604-261Y is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for 1604-261Y?
1604-261Y is cataloged in the U.S. Government catalog under NSN 5340-00-720-6393. This indicates validated use in U.S. government and defense supply chains.
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