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NS-55 — PLUNGER,QUICK RELEASE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

NS-55: PLUNGER,QUICK RELEASE.

The PLUNGER,QUICK RELEASE is a the manufacturer industrial component. Key specifications include shape: ROUND, thread_length: 0.2500 INCHES NOMINAL IN, overall_length: 1.1900 INCHES NOMINAL IN, thread_quantity_per_inch: 20, thread_series_designator: UNS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-090-4383, 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
NS-55
NSN: 5340-01-090-4383
FSC: 5340 — Hardware, Commercial
CAGE: 01226 — HUTCHINSON AEROSPACE & INDUSTRY, INC. DBA VLIER DIV VLIER (USA)
SPECIFICATIONS
shapeROUND
thread_length0.2500 INCHES NOMINAL IN
overall_length1.1900 INCHES NOMINAL IN
thread_quantity_per_inch20
thread_series_designatorUNS
NSN5340-01-090-4383
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NS-55 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
•
THREAD LENGTH: 0.2500 INCHES NOMINAL IN
•
SHAPE: ROUND
•
THREAD QUANTITY PER INCH: 20
•
THREAD SERIES DESIGNATOR: UNS
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.2500 INCHES NOMINAL IN
SHAPEROUND
OVERALL LENGTH1.1900 INCHES NOMINAL IN
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNS
SUBSTITUTES & CROSS-REFERENCES 3
SP-31Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
27304Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
12273536Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 NS-55?
NS-55 is a PLUNGER,QUICK RELEASE.
What parts can replace NS-55?
There are 3 known substitutes for NS-55: SP-31, 27304, 12273536. Substitute compatibility should be verified for your specific system.
What is the NSN for NS-55?
NS-55 is cataloged in the U.S. Government catalog under NSN 5340-01-090-4383. This indicates validated use in U.S. government and defense supply chains.
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