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Technical Data Sheet
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M52525/16-12G — Technical Data Sheet

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— · 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 FLANGE,PIPE,SWIVEL RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL OR IRON, thickness: 0.560 INCHES NOMINAL IN, flange_width: 2.040 INCHES NOMINAL IN, socket_depth: 0.245 INCHES NOMINAL IN, flange_length: 2.560 INCHES NOMINAL IN, recess_diameter: 1.531 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 4730-01-074-6595, 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
M52525/16-12G
NSN: 4730-01-074-6595
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OR IRON
thickness0.560 INCHES NOMINAL IN
flange_width2.040 INCHES NOMINAL IN
socket_depth0.245 INCHES NOMINAL IN
flange_length2.560 INCHES NOMINAL IN
recess_diameter1.531 INCHES NOMINAL IN
special_featuresSPLIT-FLANGE TYPE
style_designatorRECTANGULAR, WITH BOLT HOLES
surface_treatmentZINC
bolt_hole_diameter0.406 INCHES NOMINAL IN
bolt_hole_quantity4
flange_section_stylePLAIN FACE, SOCKET NECK
NSN4730-01-074-6595
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: M52525/16-12G · 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
•
RECESS DIAMETER: 1.531 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 1.875 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
•
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH: 0.343 INCHES NOMINAL IN
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-52525 GOVERNMENT SPECIFICATION
•
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED: 212.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF
•
MATERIAL: STEEL OR IRON
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 0.876 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
RECESS DIAMETER1.531 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH1.875 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH0.343 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA81349-MIL-F-52525 GOVERNMENT SPECIFICATION
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED212.0 FAHRENHEIT FUEL/OIL, HYDROCARBON DEGF
MATERIALSTEEL OR IRON
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH0.876 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONGROUND
FLANGE WIDTH2.040 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
663095Interchangeable
interchangeable cross-reference
interchangeable
94-4644-24Interchangeable
interchangeable cross-reference
interchangeable
3H4330Interchangeable
interchangeable cross-reference
interchangeable
51H-32Interchangeable
interchangeable cross-reference
interchangeable
4730001165229Interchangeable
interchangeable cross-reference
interchangeable
M52525/16-32Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M52525/16-12G?
M52525/16-12G is a FLANGE,PIPE,SWIVEL RETAINING.
What parts can replace M52525/16-12G?
There are 17 known substitutes for M52525/16-12G: 663095, 94-4644-24, 3H4330 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M52525/16-12G?
M52525/16-12G is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-074-6595. 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: September 2026