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AD31972-4 — TURNBUCKLE BODY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

AD31972-4: TURNBUCKLE BODY.

The TURNBUCKLE BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 304 OVERALL, body_style: HEX CLOSED BODY, body_length: 2.000 INCHES NOMINAL IN, thread_class: 3B BODY, nominal_thread_size: 0.500 INCHES BODY IN, thread_series_designator: UNF BODY. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-005-0743, 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
AD31972-4
NSN: 5340-01-005-0743
FSC: 5340 — Hardware, Commercial
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 304 OVERALL
body_styleHEX CLOSED BODY
body_length2.000 INCHES NOMINAL IN
thread_class3B BODY
nominal_thread_size0.500 INCHES BODY IN
thread_series_designatorUNF BODY
material_document_and_classificationQQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5340-01-005-0743
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AD31972-4 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BODY STYLE: HEX CLOSED BODY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
NOMINAL THREAD SIZE: 0.500 INCHES BODY IN
•
BODY LENGTH: 2.000 INCHES NOMINAL IN
•
THREAD CLASS: 3B BODY
•
MATERIAL: STEEL COMP 302 OR STEEL COMP 304 OVERALL
•
THREAD SERIES DESIGNATOR: UNF BODY
TECHNICAL CHARACTERISTICS
BODY STYLEHEX CLOSED BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL
NOMINAL THREAD SIZE0.500 INCHES BODY IN
BODY LENGTH2.000 INCHES NOMINAL IN
THREAD CLASS3B BODY
MATERIALSTEEL COMP 302 OR STEEL COMP 304 OVERALL
THREAD SERIES DESIGNATORUNF BODY
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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 AD31972-4?
AD31972-4 is a TURNBUCKLE BODY.
What is the NSN for AD31972-4?
AD31972-4 is cataloged in the U.S. Government catalog under NSN 5340-01-005-0743. 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.