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3397-034 — SCREW,TACH SERVO,FUEL CONTROL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3397-034: SCREW,TACH SERVO,FUEL CONTROL.

The SCREW,TACH SERVO,FUEL CONTROL is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5305-00-161-0591, 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
3397-034
NSN: 5305-00-161-0591
NIINs: 001610591, 013002676
FSC: 5305 — Screws
CAGE: 66503 — WOODWARD, INC. DIV FUEL SYSTEMS AND CONTROLS (USA)
SPECIFICATIONS
Part Number3397-034
NSN5305-00-161-0591
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3397-034 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,PASSIVATED,0.625 IN. LG O/A,0.435 IN. NOM DIA HEAD,0.1875 IN. MIN 0.1900 IN. MAX HEX 0.100 IN. DEEP WRENCHING FACILITY IN HEAD,0.250-28 UNJF 3A THD 0.252 IN. LG EXTERNAL,NO. 5-40 ST1-2B TAP 0.210 IN. DEEP INTERNAL,SHANK END A
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,PASSIVATED,0.625 IN. LG O/A,0.435 IN. NOM DIA HEAD,0.1875 IN. MIN 0.1900 IN. MAX HEX 0.100 IN. DEEP WRENCHING FACILITY IN HEAD,0.250-28 UNJF 3A THD 0.252 IN. LG EXTERNAL,NO. 5-40 ST1-2B TAP 0.210 IN. DEEP INTERNAL,SHANK END A
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3397-034?
3397-034 is a SCREW,TACH SERVO,FUEL CONTROL.
What is the NSN for 3397-034?
3397-034 is cataloged in the U.S. Government catalog under NSN 5305-00-161-0591. 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.