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WS-1 — Technical Data Sheet

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— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The STRAINER ELEMENT,SEDIMENT is a the manufacturer industrial component. Key specifications include length: 2.375 INCHES NOMINAL IN, material: COPPER ALLOY, current_rating: 500.0 MILLIAMPERES, pressure_rating: ERR-060 AND ERR-060, special_features: CYCLES UP TO 6,, style_designator: CYLINDRICAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-00-837-1251, 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
WS-1
NSN: 4730-00-837-1251
FSC: 4730
CAGE: 06534 — THERM-AIR MFG CO INC (USA)
SPECIFICATIONS
length2.375 INCHES NOMINAL IN
materialCOPPER ALLOY
current_rating500.0 MILLIAMPERES
pressure_ratingERR-060 AND ERR-060
special_featuresCYCLES UP TO 6,
style_designatorCYLINDRICAL
end_connection_typePLAIN FIRST END
perforation_diameter0.062 INCHES NOMINAL IN
perforation_quantity100.0 PER SQUARE INCH
filtering_media_designPERFORATED
element_outside_diameter1.438 INCHES NOMINAL IN
voltage_in_volts_and_current_type100.0 AC AND 120.0 AC
NSN4730-00-837-1251
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: WS-1 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FILTERING MEDIA DESIGN: PERFORATED
•
END CONNECTION TYPE: PLAIN FIRST END
•
MATERIAL: COPPER ALLOY
•
ELEMENT OUTSIDE DIAMETER: 1.438 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CYLINDRICAL
•
PERFORATION QUANTITY: 100.0 PER SQUARE INCH
•
PERFORATION DIAMETER: 0.062 INCHES NOMINAL IN
•
LENGTH: 2.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FILTERING MEDIA DESIGNPERFORATED
END CONNECTION TYPEPLAIN FIRST END
MATERIALCOPPER ALLOY
ELEMENT OUTSIDE DIAMETER1.438 INCHES NOMINAL IN
STYLE DESIGNATORCYLINDRICAL
PERFORATION QUANTITY100.0 PER SQUARE INCH
PERFORATION DIAMETER0.062 INCHES NOMINAL IN
LENGTH2.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
901-AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SSA1SCREENInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WS-1?
WS-1 is a STRAINER ELEMENT,SEDIMENT.
What parts can replace WS-1?
There are 2 known substitutes for WS-1: 901-A, SSA1SCREEN. Substitute compatibility should be verified for your specific system.
What is the NSN for WS-1?
WS-1 is cataloged in the Federal Logistics Information System under NSN 4730-00-837-1251. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026