PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-019-7Stud Assembly,turnlock Fastener

Bell Textron Inc · NSN 5325-00-290-8233 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-290-8233 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-290-8233. Primary manufacturer part number: 50-019-7.
Features
  • Stud Assembly,turnlock Fastener — FSC 5325
  • Material Document and Classification: ASTM A547 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Turnlock Stud Head Style: FLAT COUNTERSUNK
  • Securing Device Type: SPRING
  • Stud Assembly Style: STUD ASSEMBLY
  • Eyelet Outside Diameter: 0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Surface Treatment Document and Classification: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-290-8233, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bell Textron Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 15 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-290-8233
Primary Part Number50-019-7
Item NameStud Assembly,turnlock Fastener
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerBell Textron Inc
StatusCANCELLED
Material Document and ClassificationASTM A547 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Turnlock Stud Head StyleFLAT COUNTERSUNK
Securing Device TypeSPRING
Stud Assembly StyleSTUD ASSEMBLY
Eyelet Outside Diameter0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Surface Treatment Document and ClassificationASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Material Accommodated Thickness0.231 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
Distance From Engaging Member to Largest Bearing Surface of Head0.603 INCHES MINIMUM AND 0.613 INCHES MAXIMUM IN
Diameter0.377 INCHES MINIMUM AND 0.384 INCHES MAXIMUM IN
Eyelet Length0.352 INCHES NOMINAL IN
Drive TypeSLOTTED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5330-00-050-0197 INTERCHANGEABLE
Seal,plain Encased
5330-00-426-6934125-44 INTERCHANGEABLE
Seal,plain Encased
Dresser Industries Inc Leroi Div
6505-00-584-08241583-03 INTERCHANGEABLE
Sodium Chloride Injection
Abbott Laboratories Inc. Div Hospital Products Division
3110-00-678-6400110L INTERCHANGEABLE
Bearing,ball,annular
Federal-Mogul Corp Government Sales Dept
5340-01-297-8392 INTERCHANGEABLE
Bracket,mounting
4720-01-312-1659 INTERCHANGEABLE
Hose Assembly,nonmetallic
5133-01-460-028940027 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
8465-01-541-833640027 INTERCHANGEABLE
Hydration System
Camelbak Products, Llc Dba Camelbak
5210-01-601-2377500-197-20 INTERCHANGEABLE
Caliper,digital Display
Mitutoyo America Corp
5307-01-649-05294002-7 INTERCHANGEABLE
Stud,plain
Textron Aviation Inc
Cross-Reference Index
Part NumberManufacturer
1142000-7 Monadnock Company, the Dba Lisi Aerospace (USA)
8713978 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
4002-7 Fairchild Fasteners Europe - Camloc Gmbh (DEU)
3D0100-7AS The Boeing Company (USA)
50-019-7 Leonardo Uk Ltd (GBR)
N92214U1 Iveco Deutschland Aktiengesellschaft (DEU)
502AS2137-007 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
12861-899-35 The Boeing Company Div Legacy Boeing Hb1 (USA)
50-019-7 PRIMARY Bell Textron Inc (USA)
CVC1462-7 Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division (USA)
4002-7 Howmet Global Fastening Systems Inc Div Camloc Products (USA)
FS1079 Bae Systems Information and Electronic Systems Integration Inc. (USA)
BACS21X7 The Boeing Company Div Defense (USA)
169551601 General Dynamics European Land Systems-Bridge Systems Gmbh (DEU)
5325PL1558850 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5330-00-050-0197INTERCHANGEABLE
SEAL,PLAIN ENCASED
5330-00-426-6934INTERCHANGEABLE
SEAL,PLAIN ENCASED
125-44
6505-00-584-0824INTERCHANGEABLE
SODIUM CHLORIDE INJECTION
1583-03
3110-00-678-6400INTERCHANGEABLE
BEARING,BALL,ANNULAR
110L
5340-01-297-8392INTERCHANGEABLE
BRACKET,MOUNTING
4720-01-312-1659INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5133-01-460-0289INTERCHANGEABLE
DRILL,TWIST
40027
8465-01-541-8336INTERCHANGEABLE
HYDRATION SYSTEM
40027
5210-01-601-2377INTERCHANGEABLE
CALIPER,DIGITAL DISPLAY
500-197-20
5307-01-649-0529INTERCHANGEABLE
STUD,PLAIN
4002-7
5325-01-653-9033INTERCHANGEABLE
INSERT,SCREW THREAD
4-0027

Frequently Asked Questions

What is NSN 5325-00-290-8233?

NSN 5325-00-290-8233 is a Stud Assembly,turnlock Fastener, manufactured by Bell Textron Inc, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-290-8233?

NSN 5325-00-290-8233 has 15 cross-referenced part numbers: 1142000-7 (Monadnock Company, the Dba Lisi Aerospace), 8713978 (U S Army Tank Automotive Command Amsta-Im-Mm), 4002-7 (Fairchild Fasteners Europe - Camloc Gmbh), 3D0100-7AS (The Boeing Company), 50-019-7 (Leonardo Uk Ltd) and 10 more.

What NSN replaces 5325-00-290-8233?

There are 11 known substitutes for 5325-00-290-8233: 5330-00-050-0197, 5330-00-426-6934, 6505-00-584-0824 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50-019-7?

Key specifications for 50-019-7: Material Document and Classification: ASTM A547 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Turnlock Stud Head Style: FLAT COUNTERSUNK; Securing Device Type: SPRING; Stud Assembly Style: STUD ASSEMBLY. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-290-8233 still in active supply?

NSN 5325-00-290-8233 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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