# 41 C.F.R. § 101-30.101-3 (2026): National stock number

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_3

## Section

- **Citation:** 41 C.F.R. § 101-30.101-3 (2026)
- **Heading:** National stock number
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 41 CFR: Public Contracts and Property Management / Chapter 101: FEDERAL PROPERTY MANAGEMENT REGULATIONS / Part 101-30: 30—FEDERAL CATALOG SYSTEM / Subpart 101-30.1: 30.1—General / § 101-30.101-3: § 101-30.101-3   National stock number.

## Text

The
national stock number
(NSN) is the identifying number assigned to each item of supply. The NSN consists of the 4-digit Federal Supply Classification (FSC) code and the 9-digit national item identification number (NIIN). The written, printed, or typed NSN configuration is 1234-00-567-8901. The following terms are elements of the 13-digit national stock number:
(a)
Federal Supply Classification
(FSC) is a 4-digit number which groups similar items into classes.
(b)
National Codification Bureau
(NCB) code is a 2-digit number designating the central cataloging office of the NATO or other friendly country which assigned the national item identification number (NIIN) and is used as the first two digits of the NIIN.
(c)
National item identification number
(NIIN) is a 9-digit number composed of the NCB code number (2-digits) followed by 7 other nonsignificant digits.
[41 FR 11308, Mar. 18, 1976]

## Nearby sections

- [41 C.F.R. § 101-30.100 (2026) § 101-30.100   Scope of subpart.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_100.md)
- [41 C.F.R. § 101-30.101 (2026) § 101-30.101   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101.md)
- [41 C.F.R. § 101-30.101-1 (2026) § 101-30.101-1   Civil agency item.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_1.md)
- [41 C.F.R. § 101-30.101-1a (2026) § 101-30.101-1a   Item of production.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_1a.md)
- [41 C.F.R. § 101-30.101-2 (2026) § 101-30.101-2   Item of supply.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_2.md)
- [41 C.F.R. § 101-30.101-3 (2026) § 101-30.101-3   National stock number.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_3.md)
- [41 C.F.R. § 101-30.101-4 (2026) § 101-30.101-4   Federal item identification.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_4.md)
- [41 C.F.R. § 101-30.101-5 (2026) § 101-30.101-5   Cataloging.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_5.md)
- [41 C.F.R. § 101-30.101-6 (2026) § 101-30.101-6   Cataloging activity.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_6.md)
- [41 C.F.R. § 101-30.101-7 (2026) § 101-30.101-7   Federal Catalog System.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_7.md)
- [41 C.F.R. § 101-30.101-8 (2026) § 101-30.101-8   Conversion.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_8.md)
- [41 C.F.R. § 101-30.101-9 (2026) § 101-30.101-9   Item entry control.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_9.md)
- [41 C.F.R. § 101-30.101-10 (2026) § 101-30.101-10   GSA section of the Federal Supply Catalog.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_10.md)
- [41 C.F.R. § 101-30.101-11 (2026) § 101-30.101-11   Recorded data.](https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_11.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T41_P101_30_S101_30_101_3. Check the current official text before relying on it. Not legal advice.