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740743-2 — SHELL,INLET,HEAT EXCHANGER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

740743-2: SHELL,INLET,HEAT EXCHANGER.

The SHELL,INLET,HEAT EXCHANGER is a the manufacturer industrial component. Key specifications include end_item_identification: PART OF HEAT EXCHANGER,TURBINE,USED ON E3A AIRCRAFT, general_characteristics_item_description: 9.78 IN. LG,20.86 IN.

LARGEST DIA IN. This part is cataloged in the U.S. Government catalog under NSN 5305-00-141-2708, 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
740743-2
NSN: 5305-00-141-2708
NIINs: 001412708, 010164097
FSC: 5305 — Screws
CAGE: 82192 — CORRECT CRAFT, INC. (USA)
SPECIFICATIONS
end_item_identificationPART OF HEAT EXCHANGER,TURBINE,USED ON E3A AIRCRAFT
general_characteristics_item_description9.78 IN. LG,20.86 IN. LARGEST DIA IN
NSN5305-00-141-2708
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 740743-2 · 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
•
WIDTH ACROSS FLATS: 0.218 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.500 INCHES NOMINAL IN
•
THREAD LENGTH: 1.250 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: CADMIUM OVERALL
•
INTERNAL DRIVE STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.218 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
FASTENER LENGTH1.500 INCHES NOMINAL IN
THREAD LENGTH1.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTCADMIUM OVERALL
INTERNAL DRIVE STYLEHEXAGON
COUNTERSINK ANGLE82.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
THREAD CLASS3A A
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 740743-2?
740743-2 is a SHELL,INLET,HEAT EXCHANGER.
What is the NSN for 740743-2?
740743-2 is cataloged in the U.S. Government catalog under NSN 5305-00-141-2708. 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.