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PartsTable / COMPONENT / DS-921979
DS-921979 ✓ 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 RESTRICTOR UNIT,FLUID FLOW is a the manufacturer industrial component. Key specifications include diameter: 0.145 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN, material: NICKEL ALLOY SCREENING, design_type: STRAIGHT, overall_length: 0.453 INCHES NOMINAL IN, pressure_rating: 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS, orifice_diameter: 0.040 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-473-5900, 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-921979
NSN: 4730-00-473-5900
FSC: 4730
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
diameter0.145 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN
materialNICKEL ALLOY SCREENING
design_typeSTRAIGHT
overall_length0.453 INCHES NOMINAL IN
pressure_rating3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
orifice_diameter0.040 INCHES NOMINAL IN
width_across_flats0.105 INCHES NOMINAL IN
fsc_application_dataMOTOR&PUMP,HYDRAULIC. B-52 AIRCRAFT
end_connection_similarityNOT IDENTICAL
strainer_type_and_quantity1 SCREEN
NSN4730-00-473-5900
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: DS-921979 · 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
•
DESIGN TYPE: STRAIGHT
•
DIAMETER: 0.145 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN
•
ORIFICE DIAMETER: 0.040 INCHES NOMINAL IN
•
END CONNECTION SIMILARITY: NOT IDENTICAL
•
STRAINER TYPE AND QUANTITY: 1 SCREEN
•
PRESSURE RATING: 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
•
WIDTH ACROSS FLATS: 0.105 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.453 INCHES NOMINAL IN
DESIGN TYPESTRAIGHT
DIAMETER0.145 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN
ORIFICE DIAMETER0.040 INCHES NOMINAL IN
END CONNECTION SIMILARITYNOT IDENTICAL
STRAINER TYPE AND QUANTITY1 SCREEN
PRESSURE RATING3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
WIDTH ACROSS FLATS0.105 INCHES NOMINAL IN
FSC APPLICATION DATAMOTOR&PUMP,HYDRAULIC. B-52 AIRCRAFT
MATERIALNICKEL ALLOY SCREENING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
3162PC65Interchangeable
interchangeable cross-reference
interchangeable
B2010-20PC341Interchangeable
interchangeable cross-reference
interchangeable
3654Interchangeable
interchangeable cross-reference
interchangeable
GEOCILLIN TABLETSInterchangeable
interchangeable cross-reference
interchangeable
NDC00049-1430-66Interchangeable
interchangeable cross-reference
interchangeable
GEOCILLINInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DS-921979?
DS-921979 is a RESTRICTOR UNIT,FLUID FLOW.
What parts can replace DS-921979?
There are 11 known substitutes for DS-921979: 3162PC65, B2010-20PC341, 3654 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DS-921979?
DS-921979 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-473-5900. 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