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Technical Data Sheet
PartsTable / COMPONENT / PF11-20
PF11-20 ✓ 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 FILTER ELEMENT,FLUID is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: THREADED INTERNAL, nominal_thread_size: 1.250 INCHES ALL ENDS IN, nominal_overall_length: 1.970 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-033-8702, 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
PF11-20
NSN: 4730-01-033-8702
FSC: 4730
CAGE: 98600 — DOWSETT SPRING CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorTHREADED INTERNAL
nominal_thread_size1.250 INCHES ALL ENDS IN
nominal_overall_length1.970 INCHES IN
thread_series_designatorNPTF ALL ENDS
nondefinitive_spec/std_data39 FIGURE
specification/standard_data81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4730-01-033-8702
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: PF11-20 · 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
•
THREAD SERIES DESIGNATOR: NPTF ALL ENDS
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: THREADED INTERNAL
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.970 INCHES IN
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
NOMINAL THREAD SIZE: 1.250 INCHES ALL ENDS IN
•
SPECIFICATION/STANDARD DATA: 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORNPTF ALL ENDS
MATERIALSTEEL OVERALL
STYLE DESIGNATORTHREADED INTERNAL
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
NOMINAL OVERALL LENGTH1.970 INCHES IN
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL THREAD SIZE1.250 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA39 FIGURE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
1826Interchangeable
interchangeable cross-reference
interchangeable
B378Interchangeable
interchangeable cross-reference
interchangeable
51826Interchangeable
interchangeable cross-reference
interchangeable
C3309X20Interchangeable
Same NIIN cross-reference
interchangeable
J514Interchangeable
Same NIIN cross-reference
interchangeable
J514 20-20 140138CInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PF11-20?
PF11-20 is a FILTER ELEMENT,FLUID.
What parts can replace PF11-20?
There are 11 known substitutes for PF11-20: 1826, B378, 51826 and 8 more. Substitute compatibility should be verified for your specific system.
Is PF11-20 still available?
PF11-20 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026