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PartsTable / COMPONENT / 13491 PIECE 21
13491 PIECE 21 ✓ 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 PLUG,PIPE is a the manufacturer industrial component. Key specifications include material: RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL, load_type: RESISTIVE AND INDUCTIVE, body_style: TUBE TYPE, temp_rating: 105.0 FAHRENHEIT DEGF, terminal_type: SOLDER LUG, overall_length: 1.250 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 4730-01-170-2378, 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
13491 PIECE 21
NSN: 4730-01-170-2378
FSC: 4730
CAGE: 05779 — PARKER-HANNIFIN CORPORATION DBA HYDRAULIC FILTER DIVISION DIV HYDRAULIC & FUEL FILTER DIVISION (USA)
SPECIFICATIONS
materialRUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
load_typeRESISTIVE AND INDUCTIVE
body_styleTUBE TYPE
temp_rating105.0 FAHRENHEIT DEGF
terminal_typeSOLDER LUG
overall_length1.250 INCHES NOMINAL IN
stack_quantity1
mounting_methodBRACKET(S)
overall_diameter0.250 INCHES NOMINAL IN
features_providedNONRENEWABLE FUSIBLE ELEMENT
terminal_quantity4
fsc_application_dataALTIMETER,PRESSURIZED COMPARTMENT
NSN4730-01-170-2378
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 13491 PIECE 21 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
20462Interchangeable
interchangeable cross-reference
interchangeable
313-032Interchangeable
interchangeable cross-reference
interchangeable
93661Interchangeable
interchangeable cross-reference
interchangeable
BA109653Interchangeable
interchangeable cross-reference
interchangeable
D166539Interchangeable
interchangeable cross-reference
interchangeable
P2046-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 13491 PIECE 21?
13491 PIECE 21 is a PLUG,PIPE.
What parts can replace 13491 PIECE 21?
There are 9 known substitutes for 13491 PIECE 21: 20462, 313-032, 93661 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 13491 PIECE 21?
13491 PIECE 21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-170-2378. 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