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PartsTable / COMPONENT / DS-B-90321 ITEM 4
DS-B-90321 ITEM 4 ✓ Verified by PartsTable
— · 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 material: NICKEL ALLOY, style_designator: CYLINDRICAL, perforation_diameter: 0.125 INCHES NOMINAL IN, perforation_quantity: 29.0 PER SQUARE INCH, filtering_media_design: PERFORATED, end_item_identification: SEAWOLF CLASS SSN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-450-3124, 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
DS-B-90321 ITEM 4
NSN: 4730-01-450-3124
FSC: 4730
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialNICKEL ALLOY
style_designatorCYLINDRICAL
perforation_diameter0.125 INCHES NOMINAL IN
perforation_quantity29.0 PER SQUARE INCH
filtering_media_designPERFORATED
end_item_identificationSEAWOLF CLASS SSN
NSN4730-01-450-3124
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: DS-B-90321 ITEM 4 · 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
•
STYLE DESIGNATOR: CYLINDRICAL
•
PERFORATION DIAMETER: 0.125 INCHES NOMINAL IN
•
FILTERING MEDIA DESIGN: PERFORATED
•
MATERIAL: NICKEL ALLOY
•
PERFORATION QUANTITY: 29.0 PER SQUARE INCH
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCYLINDRICAL
PERFORATION DIAMETER0.125 INCHES NOMINAL IN
FILTERING MEDIA DESIGNPERFORATED
MATERIALNICKEL ALLOY
PERFORATION QUANTITY29.0 PER SQUARE INCH
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
301540Interchangeable
interchangeable cross-reference
interchangeable
7522Interchangeable
interchangeable cross-reference
interchangeable
61540Interchangeable
interchangeable cross-reference
interchangeable
DS-B-90321Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DS-B-90321 ITEM 4?
DS-B-90321 ITEM 4 is a STRAINER ELEMENT,SEDIMENT.
What parts can replace DS-B-90321 ITEM 4?
There are 4 known substitutes for DS-B-90321 ITEM 4: 301540, 7522, 61540 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DS-B-90321 ITEM 4?
DS-B-90321 ITEM 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-450-3124. 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: July 2026