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734874-1 — SHROUD SEGMENT,TURBINE,AIRCRAFT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

734874-1: SHROUD SEGMENT,TURBINE,AIRCRAFT.

SHROUD SEGMENT,TURBINE,AIRCRAFT. Key specifications include diameter: 20.430 INCHES MINIMUM AND 20.450 INCHES MAXIMUM IN, material: STEEL OVERALL, overall_width: 1.138 INCHES MINIMUM AND 1.146 INCHES MAXIMUM IN, overall_length: 20.000 INCHES NOMINAL IN, special_features: TOLERANCE,FIT,FUNCTION, material_thickness: 2.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-734-8741, 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
734874-1
NSN: 5310-00-734-8741
NIINs: 007348741, 011606492
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
diameter20.430 INCHES MINIMUM AND 20.450 INCHES MAXIMUM IN
materialSTEEL OVERALL
overall_width1.138 INCHES MINIMUM AND 1.146 INCHES MAXIMUM IN
overall_length20.000 INCHES NOMINAL IN
special_featuresTOLERANCE,FIT,FUNCTION
material_thickness2.000 INCHES NOMINAL IN
end_item_identificationACFT ENG TF33
engine_section_locationTURBINE
criticality_code_justificationFEAT
NSN5310-00-734-8741
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 734874-1 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HEAT TREATMENT: QUENCHED AND TEMPERED
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HARDNESS RATING: 43.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPRING TENSION
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.124 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAT TREATMENTQUENCHED AND TEMPERED
HARDNESS RATING43.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPRING TENSION
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN
MATERIAL THICKNESS0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
COLORBLACK OVERALL
SURFACE TREATMENTOXIDE FILM OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
252929R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
CL6824Reference document
Same NSN cross-reference
Reference document — Secondary reference
22092MReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 734874-1?
734874-1 is a SHROUD SEGMENT,TURBINE,AIRCRAFT.
What parts can replace 734874-1?
There are 3 known substitutes for 734874-1: 252929R1, CL6824, 22092M. Substitute compatibility should be verified for your specific system.
What is the NSN for 734874-1?
734874-1 is cataloged in the U.S. Government catalog under NSN 5310-00-734-8741. This indicates validated use in U.S. government and defense supply chains.
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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.