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Technical Data Sheet
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6-2691-1 — RING,PISTON

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6-2691-1: RING,PISTON.

The RING,PISTON is a the manufacturer industrial component. Key specifications include end_item_identification: KINGSBURY INCORPORATED TURBINE GENERATOR. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-732-3484, 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
6-2691-1
NSN: 5307-00-732-3484
NIINs: 007323484, 012380195
FSC: 5307 — Studs
CAGE: 06848 — HONEYWELL INTERNATIONAL INC DIV AEROSPACE-SOUTH BEND (BENDIX DR) (USA)
SPECIFICATIONS
end_item_identificationKINGSBURY INCORPORATED TURBINE GENERATOR
NSN5307-00-732-3484
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6-2691-1 · 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
•
SHANK DIAMETER: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
SURFACE FINISH: 70.0 MICROINCHES NUT THD
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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
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THREAD LENGTH: 0.562 INCHES NOMINAL STUD THREAD IN
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HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
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STYLE DESIGNATOR: STEPPED
•
THREAD PITCH DIAMETERS: +0.2805 TO 0.2821 INCHES STUD THREAD IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
SURFACE FINISH70.0 MICROINCHES NUT THD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.562 INCHES NOMINAL STUD THREAD IN
THREAD LENGTH0.562 INCHES NOMINAL NUT THREAD IN
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSTEPPED
THREAD PITCH DIAMETERS+0.2805 TO 0.2821 INCHES STUD THREAD IN
OVERALL LENGTH2.297 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND STUD THREAD
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6-2691-1?
6-2691-1 is a RING,PISTON.
What is the NSN for 6-2691-1?
6-2691-1 is cataloged in the U.S. Government catalog under NSN 5307-00-732-3484. 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.