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Technical Data Sheet
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225637 ✓ 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 CHLORIDE TEST REAGENT is a the manufacturer industrial component. Key specifications include special_features: CHLORIDE 2 INDICATOR; SAMPLE SIZE: 100 ML; PACKAGE OF 50 POWDER PILLOWS ; POWDER FOR ARGENTOMETRIC METHODS, part_name_assigned_by_controlling_agency: CHLORIDE TEST REAGENT 50S. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-202-6912, 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
225637
NSN: 4730-00-202-6912
FSC: 4730
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
special_featuresCHLORIDE 2 INDICATOR; SAMPLE SIZE: 100 ML; PACKAGE OF 50 POWDER PILLOWS ; POWDER FOR ARGENTOMETRIC METHODS
part_name_assigned_by_controlling_agencyCHLORIDE TEST REAGENT 50S
NSN4730-00-202-6912
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 225637 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: 81343-AMS 7452 ASSN STD SINGLE MATERIAL RESPONSE
•
CONCENTRIC HOLE DEPTH: 0.631 INCHES MINIMUM AND 0.651 INCHES MAXIMUM IN
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 0.083 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
•
FIRST RADIAL FLUID HOLE DIAMETER: 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
•
WRENCHING FEATURE HEIGHT: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESWITH SIX 0.065 TO 0.075 IN.DIA HOLES IN HEX HEAD IN
MATERIAL DOCUMENT AND CLASSIFICATION81343-AMS 7452 ASSN STD SINGLE MATERIAL RESPONSE
CONCENTRIC HOLE DEPTH0.631 INCHES MINIMUM AND 0.651 INCHES MAXIMUM IN
OVERALL LENGTH0.901 INCHES NOMINAL IN
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER0.083 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
FIRST RADIAL FLUID HOLE DIAMETER0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
WRENCHING FEATURE HEIGHT0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
MATERIALSTEEL
FIRST END THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
6550NCM128105Interchangeable
interchangeable cross-reference
interchangeable
8018482Interchangeable
interchangeable cross-reference
interchangeable
1057-66Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 225637?
225637 is a CHLORIDE TEST REAGENT.
What parts can replace 225637?
There are 3 known substitutes for 225637: 6550NCM128105, 8018482, 1057-66. Substitute compatibility should be verified for your specific system.
What is the NSN for 225637?
225637 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-202-6912. 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