PartsTable
Technical Data Sheet
Download PDF

BACG20X4 — EYELET,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BACG20X4: EYELET,TURNLOCK FASTENER.

The EYELET,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1144 OVERALL, eyelet_height: 0.192 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL, turnlock_eyelet_style: EYELET, eyelet_inside_diameter: 0.351 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, distance_between_flanges: 0.143 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-524-7138, 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
BACG20X4
NSN: 5325-01-524-7138
FSC: 5325 — Fastening Devices
CAGE: 17765 — THE BOEING COMPANY DIV COMMERCIAL (USA)
SPECIFICATIONS
materialSTEEL COMP 1144 OVERALL
eyelet_height0.192 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
turnlock_eyelet_styleEYELET
eyelet_inside_diameter0.351 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
distance_between_flanges0.143 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
largest_outside_diameter0.617 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
smallest_outside_diameter0.467 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-637 GR. 1144 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416, TY II, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5325-01-524-7138
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BACG20X4 · 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
•
EYELET HEIGHT: 0.192 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
•
DISTANCE BETWEEN FLANGES: 0.143 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416, TY II, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
LARGEST OUTSIDE DIAMETER: 0.617 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
TURNLOCK EYELET STYLE: EYELET
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-637 GR. 1144 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
EYELET INSIDE DIAMETER: 0.351 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
SMALLEST OUTSIDE DIAMETER: 0.467 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
EYELET HEIGHT0.192 INCHES MINIMUM AND 0.202 INCHES MAXIMUM IN
DISTANCE BETWEEN FLANGES0.143 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TY II, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
LARGEST OUTSIDE DIAMETER0.617 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
TURNLOCK EYELET STYLEEYELET
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 GR. 1144 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
EYELET INSIDE DIAMETER0.351 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
SMALLEST OUTSIDE DIAMETER0.467 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1144 OVERALL
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
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
Ready to buy BACG20X4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is BACG20X4?
BACG20X4 is a EYELET,TURNLOCK FASTENER.
What is the NSN for BACG20X4?
BACG20X4 is cataloged in the U.S. Government catalog under NSN 5325-01-524-7138. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — BACG20X4

✓ 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.