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Technical Data Sheet
PartsTable / COMPONENT / 6661N
6661N ✓ 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 STRAINER BODY,SEDIMENT is a the manufacturer industrial component. Key specifications include material: STEEL, thickness: 0.750 INCHES NOMINAL IN, body_length: 8.375 INCHES NOMINAL IN, neck_height: 0.219 INCHES NOMINAL IN, flange_width: 2.750 INCHES NOMINAL IN, flange_length: 4.875 INCHES MINIMUM AND 5.016 INCHES MAXIMUM 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 4730-01-133-4068, 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
6661N
NSN: 4730-01-133-4068
FSC: 4730
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL
thickness0.750 INCHES NOMINAL IN
body_length8.375 INCHES NOMINAL IN
neck_height0.219 INCHES NOMINAL IN
flange_width2.750 INCHES NOMINAL IN
flange_length4.875 INCHES MINIMUM AND 5.016 INCHES MAXIMUM IN
mounting_typeINLET CONNECTION AND OUTLET CONNECTION SIDE NEAR TOP
style_designatorOVAL, ONE BOLT HOLE CIRCLE
flange_end_radius0.688 INCHES NOMINAL IN
bolt_hole_diameter0.656 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
bolt_hole_quantity2
raised_face_height0.312 INCHES NOMINAL IN
NSN4730-01-133-4068
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6661N · 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: STEEL
•
BOLT HOLE DIAMETER: 0.656 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
•
FLANGE SECTION STYLE: RAISED FACE, RAISED NECK
•
RAISED FACE HEIGHT: 0.312 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 2
•
FLANGE LENGTH: 4.875 INCHES MINIMUM AND 5.016 INCHES MAXIMUM IN
•
RAISED FACE DIAMETER: 2.350 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-872 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL
BOLT HOLE DIAMETER0.656 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
FLANGE SECTION STYLERAISED FACE, RAISED NECK
RAISED FACE HEIGHT0.312 INCHES NOMINAL IN
BOLT HOLE QUANTITY2
FLANGE LENGTH4.875 INCHES MINIMUM AND 5.016 INCHES MAXIMUM IN
RAISED FACE DIAMETER2.350 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-872 MIL SPEC SINGLE MATERIAL RESPONSE
BOLT CIRCLE DIAMETER3.500 INCHES NOMINAL IN
FLANGE WIDTH2.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
16032Interchangeable
interchangeable cross-reference
interchangeable
10086059Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-6000Interchangeable
interchangeable cross-reference
interchangeable
4720PL0887602Interchangeable
interchangeable cross-reference
interchangeable
SS845-1889527PC2Interchangeable
interchangeable cross-reference
interchangeable
11151Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6661N?
6661N is a STRAINER BODY,SEDIMENT.
What parts can replace 6661N?
There are 15 known substitutes for 6661N: 16032, 10086059, MIL-H-6000 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6661N?
6661N is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-133-4068. 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