PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

201100Screw,hammer Spring

Waltham Aircraft Clock Corp · NSN 5305-00-536-1561 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-536-1561 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-536-1561. Primary manufacturer part number: 201100.
Features
  • Screw,hammer Spring — FSC 5305
  • 3 verified cross-references
  • Primary manufacturer: Waltham Aircraft Clock Corp
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Mechanical energy storage
  • Vibration dampening
General Description

The Screw,hammer Spring, cataloged under National Stock Number 5305-00-536-1561, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Waltham Aircraft Clock Corp. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameScrew,hammer Spring
FSC / FSG5305 — No Item Name Available (FSG 53)
ManufacturersWaltham Clock Co Inc (CAGE 79300); Waltham Aircraft Clock Corp (CAGE 0Y4A4)
Technical Specifications
ParameterValue
NSN5305-00-536-1561
Primary Part Number201100
Item NameScrew,hammer Spring
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerWaltham Aircraft Clock Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-106-3666 INTERCHANGEABLE
Resistor,fixed,composition
5330-00-255-649151107S59-762PC7 INTERCHANGEABLE
Gasket
Naval Ship Systems Command
1660-00-518-6850 INTERCHANGEABLE
Heater,aircraft
5970-00-836-4655201-100 INTERCHANGEABLE
Insulator,washer
Asheville-Schoonmaker Mica Co., Llc
5930-01-129-415520110-0 INTERCHANGEABLE
Switch,thermostatic
Kidde-Fenwal, Llc
2840-01-150-66605030T92P03 INTERCHANGEABLE
Seal Assembly,carbon
General Electric Company Dba Ge Aerospace
6240-01-334-6046201100 INTERCHANGEABLE
Lamp,incandescent
Streamlight Inc Dba Streamlight Inc
5940-01-370-5050 INTERCHANGEABLE
Terminal,lug
3040-01-376-4019201100 INTERCHANGEABLE
Shaft,straight
Admiral Filter Company Llc
2530-01-406-4652201100 INTERCHANGEABLE
Adjusting Screw Assembly,brake
Dynarad
Cross-Reference Index
Part NumberManufacturer
731 Waltham Clock Co Inc (USA)
201100 PRIMARY Waltham Aircraft Clock Corp (USA)
20000731 Waltham Clock Co Inc (USA)
Related Parts
5905-00-106-3666INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5330-00-255-6491INTERCHANGEABLE
GASKET
51107S59-762PC7
1660-00-518-6850INTERCHANGEABLE
HEATER,AIRCRAFT
5970-00-836-4655INTERCHANGEABLE
INSULATOR,WASHER
201-100
5930-01-129-4155INTERCHANGEABLE
SWITCH,THERMOSTATIC
20110-0
2840-01-150-6660INTERCHANGEABLE
SEAL ASSEMBLY,CARBON
5030T92P03
6240-01-334-6046INTERCHANGEABLE
LAMP,INCANDESCENT
201100
5940-01-370-5050INTERCHANGEABLE
TERMINAL,LUG
3040-01-376-4019INTERCHANGEABLE
SHAFT,STRAIGHT
201100
2530-01-406-4652INTERCHANGEABLE
ADJUSTING SCREW ASSEMBLY,BRAKE
201100
5950-01-416-8244INTERCHANGEABLE
REACTOR
7137809-0001
6520-01-549-9977INTERCHANGEABLE
INSERT,TRAY,DENTAL INSTRUMENT AN
20-1100

Frequently Asked Questions

What is NSN 5305-00-536-1561?

NSN 5305-00-536-1561 is a Screw,hammer Spring, manufactured by Waltham Aircraft Clock Corp, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-536-1561?

NSN 5305-00-536-1561 has 3 cross-referenced part numbers: 731 (Waltham Clock Co Inc), 201100 (Waltham Aircraft Clock Corp), 20000731 (Waltham Clock Co Inc).

What NSN replaces 5305-00-536-1561?

There are 12 known substitutes for 5305-00-536-1561: 5905-00-106-3666, 5330-00-255-6491, 1660-00-518-6850 and 9 more. Verify interchangeability with system specifications before substitution.

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