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65-444 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

65-444: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include overall_width: 10.000 INCHES NOMINAL IN, overall_length: 16.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-151-3465, 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
65-444
NSN: 5306-00-151-3465
NIINs: 001513465, 011969205, 016222122
FSC: 5306 — Bolts
CAGE: 80049 — DEPARTMENT OF THE AIR FORCE (USA)
SPECIFICATIONS
overall_width10.000 INCHES NOMINAL IN
overall_length16.000 INCHES NOMINAL IN
special_featuresDEPTH: 2.25IN.; MATERIAL: POLYPROPYLENE CONSTRUCTION; CLIP WITH PLASTIC GRIPS HOLDS UP TO 1/2IN. PAPER; LARGE INTERNAL STORAGE HOLDS PADS AND PENS ETC. IN
NSN5306-00-151-3465
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 65-444 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.172 INCHES NOMINAL IN
•
FASTENER LENGTH: 4.500 INCHES NOMINAL IN
•
THREAD LENGTH: 0.875 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
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FEATURES PROVIDED: UNFINISHED HEAD
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.172 INCHES NOMINAL IN
FASTENER LENGTH4.500 INCHES NOMINAL IN
THREAD LENGTH0.875 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
FEATURES PROVIDEDUNFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.375 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
MINIMUM TENSILE STRENGTH48000 POUNDS PER SQUARE INCH LBS
SUBSTITUTES & CROSS-REFERENCES 2
FFB571ANDCLASSCReference document
Same NSN cross-reference
Reference document — Identification reference
FFB575Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 65-444?
65-444 is a RESTRICTOR,FLUID FLOW.
What parts can replace 65-444?
There are 2 known substitutes for 65-444: FFB571ANDCLASSC, FFB575. Substitute compatibility should be verified for your specific system.
What is the NSN for 65-444?
65-444 is cataloged in the U.S. Government catalog under NSN 5306-00-151-3465. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.