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AN921-16D — ROD,CHASSIS,ELECTRIAL-ELECTRONIC

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AN921-16D: ROD,CHASSIS,ELECTRIAL-ELECTRONIC.

ROD,CHASSIS,ELECTRIAL-ELECTRONIC. Key specifications include material: ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 2.781 INCHES NOMINAL FIRST END IN, seat_angle: 37.0 DEGREES ALL ENDS, thread_class: 3A FIRST END BULKHEAD A, connection_type: THREADED EXTERNAL TUBE ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-197-2920, 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
AN921-16D
NSN: 4730-00-197-2920
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024 OVERALL
flow_angle90.0 DEGREES
leg_length2.781 INCHES NOMINAL FIRST END IN
seat_angle37.0 DEGREES ALL ENDS
thread_class3A FIRST END BULKHEAD A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
surface_treatmentANODIZE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.312 INCHES FIRST END BULKHEAD IN
maximum_operating_temp225.0 FAHRENHEIT SINGLE RESPONSE DEGF
end_item_identificationGRUMMAN A10A AIRCRAFT
NSN4730-00-197-2920
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN921-16D · 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
SUBSTITUTES & CROSS-REFERENCES 4
170987Reference document
Same NSN cross-reference
Reference document — Secondary reference
AN833-16DSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4730PL1938630Reference document
Same NSN cross-reference
Reference document — Informative reference only
Z00.N7730062153Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AN921-16D?
AN921-16D is a ROD,CHASSIS,ELECTRIAL-ELECTRONIC.
What parts can replace AN921-16D?
There are 4 known substitutes for AN921-16D: 170987, AN833-16D, 4730PL1938630 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN921-16D?
AN921-16D is cataloged in the U.S. Government catalog under NSN 4730-00-197-2920. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.